/ˈæsɪd ||; ˈæsɪd/noun [C,U] (in chemistry) a liquid substance that can dissolve metal and may burn your skin or clothes. Acids have a pH value of less than 7. （化学）酸: sulphuric acid硫酸☞Look at alkali and base. 参看 alkali 及 base。 ☞picture at pH 见pH插图
acid²
/ˈæsɪd ||; ˈæsɪd/adj
1 (used about a fruit, etc) with a sour taste （指水果等）酸的，酸味的
2 (also acidic /əˈsɪdɪk ||; əˈsɪdɪk/) containing an acid 含酸的；酸性的: an acid solution酸性溶液 [OPP]Look at alkaline. 参看 alkaline。☞picture at pH 见pH插图