A conclusive or critical test, as used to determine the worth, quality, or effectiveness of someone or something. The phrase comes from the 19th-century practice of testing metals in nitric acid to determine if they contained gold.
Restructuring the organization will be the acid test that determines whether or not it can survive the sudden downturn in the ec ... Show More
Oct 2020
GRE & SAT Vocabulary Ep1 | acid, prodigal, exacerbate, coalesce, acuity
00:23 acid (a.) sharp-tasting or sour 01:10 prodigal (a.) spending money or using resources recklessly and wastefully 02:55 exacerbate (v.) make worse 04:14 coalesce (v.) come together to form one mass or one thing 06:30 acuity (n.) sharpness of thought, vision 中文講解版請看：https://yo ... Show More
8m 20s