Methanoic acid
[化] 甲酸
🧩 词语组成解析
🗣️ 情景例句
She won the first place in a speech contest.
她在演讲比赛中获得很第一名。
A good conscience is a soft pillow.
白日不做亏心事，夜半敲门心不惊。
first, those whose work is work and whose pleasure is pleasure;
第一类是分清工作是工作，娱乐是娱乐的人；