Polyphenyl
聚苯
🗣️ 情景例句
I would like to send this by registered mail, please.
我想把这封信挂号寄出。
Music is the eye of the ear.
音乐是耳朵的眼睛。
She makes it clear that she doesn't like swimming.
她明确地表示她不喜欢游泳。