Copaivic acid
[化] 苦配巴酸
🧩 词语组成解析
🗣️ 情景例句
What time do your classes start?
你的课什么时候开始？
None but a wise man can employ leisure well.
唯智者善于利用空闲。
Pardon? Would you please say that again more slowly?
对不起，请你慢点儿再说一遍好吗？