adj.連續(xù)發(fā)生的; 不斷的; 重復(fù)的; 不變的; 固定的; 恒定的
n.常數(shù); 常量

復(fù)數(shù)：constants

牛津詞典

adj.

連續(xù)發(fā)生的；不斷的；重復(fù)的happening all the time or repeatedly

constant interruptions無休止的干擾

a constant stream of visitors all day整天絡(luò)繹不絕的游客

Babies need constant attention.嬰兒一刻也離不開人。

This entrance is in constant use.此入口經(jīng)常使用。

不變的；固定的；恒定的that does not change

travelling at a constant speed of 50 m.p.h.以每小時50英里的恒定速度行駛

noun

常數(shù)；常量a number or quantity that does not vary

柯林斯詞典

ADJ 持續(xù)不斷的;重復(fù)的;一直存在的You use constant to describe something that happens all the time or is always there.She suggests that women are under constant pressure to be abnormally thin...她暗示說女性總是處在保持身材異常瘦削的壓力之下。

Inflation is a constant threat...通貨膨脹始終是個威脅。

He has been her constant companion for the last four months.4個月來，他一直陪伴在她身邊。

ADJ-GRADED 恒定的;不變的If an amount or level is constant, it stays the same over a particular period of time.The average speed of the winds remained constant.平均風速保持穩(wěn)定。

N-COUNT 恒定物;常數(shù)；常量；常項A constant is a thing or value that always stays the same.In the world of fashion it sometimes seems that the only constant is ceaseless change...在時裝界，有時似乎唯一永恒不變的東西就是不斷的變化。

Two significant constants have been found in a number of research studies.若干研究已經(jīng)發(fā)現(xiàn)了兩個重要常量。

You can use constant, continual, and continuous to describe things that happen or exist without stopping. You describe something as constant when it happens all the time or never goes away. He was in constant pain. ...Eva's constant criticism. Continual is usually used to describe something that happens often over a period of time, especially something undesirable. ...his continual drinking. ...continual demands to cut costs. If something is continuous, it happens all the time without stopping, or seems to do so. ...days of continuous rain. ...a continuous background noise. constant, continual 和 continuous 均可用來描述不斷發(fā)生或一直存在的事物。constant 表示一直在發(fā)生或從未消失：He was in constant pain (他的疼痛一直沒有消停)，Eva's constant criticism (伊娃沒完沒了的批評)。continual 通常用來形容一段時期內(nèi)經(jīng)常發(fā)生的事，尤其是令人討厭的事：his continual drinking (他經(jīng)常飲酒)，continual demands to cut costs (不斷要求削減成本)。continuous 表示一直沒有間斷，或者貌似如此：days of continuous rain (淫雨霏霏的日子)，a continuous background noise (持續(xù)不斷的背景噪音)。

雙語例句

They will have to bear the misery of living in constant fear of war 他們不得不忍受長期生活在戰(zhàn)爭恐懼中的痛苦。

The constant repetition of violence has blunted the human response to it 反復(fù)出現(xiàn)的暴力事件使人們的反應(yīng)都變得麻木了。

The capital is still under constant bombardment by the rebel forces. 首都仍在遭受叛軍的持續(xù)轟炸。

Fred had been her constant companion for the last six years of her life 在她生命的最后6年，弗萊德一直是她忠實的伴侶。

We conceive of the family as being in a constant state of change 我們認為家庭處于不斷變化之中。

She suggests that women are under constant pressure to be abnormally thin 她暗示說女性總是處在保持身材異常瘦削的壓力之下。

Inflation is a constant threat 通貨膨脹始終是個威脅。

He has been her constant companion for the last four months. 4個月來，他一直陪伴在她身邊。

The average speed of the winds remained constant. 平均風速保持穩(wěn)定。

In the world of fashion it sometimes seems that the only constant is ceaseless change 在時裝界，有時似乎唯一永恒不變的東西就是不斷的變化。

Two significant constants have been found in a number of research studies. 若干研究已經(jīng)發(fā)現(xiàn)了兩個重要常量。

He would have a nurse in constant attendance day and night. 會有一位護士日夜不間斷地陪護著他。

Throughout the house, the views are a constant source of surprise and delight 從房子各處看到的景色不斷給人以驚奇和欣喜。

People are rejecting this constant diet of despair. 人們開始拒絕這種沒完沒了的絕望情緒。

The dynamic of the market demands constant change and adjustment 市場要有活力，需要不斷地改變和調(diào)整。

His body is honed and kept in trim with constant exercise. 他經(jīng)常運動，以鍛煉身體和保持身材。

Leaving aside the question of privacy, constant surveillance can be remarkably convenient. 如果不去管隱私問題的話，實施不間斷監(jiān)視其實是非常便利的。

My life has been music, and a constant search for it has been the mainspring of my life 我以音樂為生，對音樂的不懈探索已經(jīng)成為我生活的動力。

An automatic voltage regulator ensured a constant output from the generator. 一個自動電壓調(diào)節(jié)器保證了發(fā)電機電流輸出的穩(wěn)定。

She could hear the constant rhythm of his breathing. 她能聽見他均勻而有節(jié)奏的呼吸。

Constant wheelchair use will scuff almost any floor surface 任何地板上經(jīng)常有輪椅走動幾乎都會有所磨損。

We had a constant stream of visitors. 我們這里的游客絡(luò)繹不絕。

The brain requires a constant supply of oxygen 大腦需要持續(xù)供氧。

He was arrested after being kept under constant surveillance 在被連續(xù)監(jiān)視了一段時間后，他被逮捕了。

Even the most security-conscious computer user is under constant threat from computer viruses. 即使是有強烈安全意識的計算機用戶也時刻處于計算機病毒入侵的威脅下。

She has a low threshold of boredom and needs the constant stimulation of physical activity 她容易厭倦，需要時常進行活動來***一下。

Parts of the motor wore out because of constant usage 發(fā)動機的一些部件因為經(jīng)常使用而磨損了。

Constant indulgence in bad habits brought about his ruin. 經(jīng)常沉溺于惡習導(dǎo)致了他的毀滅。

Constant effort yields sure success. 功到自然成。

Constant vigilance is necessary in order to avoid accidents. 為了避免意外事故，必須經(jīng)常保持警惕。

英英釋義

noun

a quantity that does not vary

Synonym:constant quantityinvariable

a number representing a quantity assumed to have a fixed value in a specified mathematical context

the velocity of light is a constant

adj

steadfast in purpose or devotion or affection

a man constant in adherence to his ideals

a constant lover

constant as the northern star

uninterrupted in time and indefinitely long continuing

the ceaseless thunder of surf

in constant pain

night and day we live with the incessant noise of the city

the never-ending search for happiness

the perpetual struggle to maintain standards in a democracy

man's unceasing warfare with drought and isolation

unremitting demands of hunger

Synonym:ceaselessincessantnever-endingperpetualunceasingunremitting

unvarying in nature

maintained a constant temperature

principles of unvarying validity

Synonym:changelessinvariantunvarying