acid

the acid test a situation or event which finally proves whether something is good or bad, true or false, etc.

☞ The original use of the phrase was to denote a method of testing for gold with nitric acid (gold being resistant to the effects of nitric acid).

1990Which? These deals are designed to encourage impulse buying, so the acid test is whether you would have bought anyway.

come the acid be unpleasant or offensive; speak in a caustic or sarcastic manner. informal

put the acid on someone try to extract a loan or favour from someone. Australian & New Zealand informal

词组	acid
释义	acid the acid test a situation or event which finally proves whether something is good or bad, true or false, etc. ☞ The original use of the phrase was to denote a method of testing for gold with nitric acid (gold being resistant to the effects of nitric acid). 1990Which? These deals are designed to encourage impulse buying, so the acid test is whether you would have bought anyway. come the acid be unpleasant or offensive; speak in a caustic or sarcastic manner. informal put the acid on someone try to extract a loan or favour from someone. Australian & New Zealand informal
随便看	cut the gordian knot cut the ground from under someone's feet cut the knot cut the mustard cut the ribbon cut the rug cut things fine cut to the chase cut up rough cut your coat according to your cloth cut your coat according to your cloth cut your eye teeth cut your losses cut your own throat cut your teeth cylinder dab dag dagger daily daisy dale damage damaged goods damaged goods