Pulvic acid
[化] 普耳文酸; 枕酸
🧩 词语组成解析
🗣️ 情景例句
Would you like to be friends?
我们做朋友好吗？
Sorrow comes unsent for.
悲哀来时不须邀。
The Turners are going on a train. The conductor is coming round.
特纳一家人在火车上。列车员走过来。