n.證明；防護(hù)；上膠
sp.動(dòng)詞proof的現(xiàn)在分詞形式.
proofing英英釋義
動(dòng)詞proof
make or take a proof of, such as a photographic negative, an etching, or typeset
knead to reach proper lightness
read for errors
activate by mixing with water and sometimes sugar or milk
make resistant (to harm)