5,794 个单词和短语 · 21 个主题

词汇

acid

n.L2 进阶B2

酸

英文释义 a substance that can react with an alkali and is found in some liquids, foods, and chemicals

作答后解锁

在休闲、新排位或单人练习中遇到这个词并作答,就能解锁完整词条。