Polyxylene
聚二甲苯; 聚二甲苯
🗣️ 情景例句
No problem. I'm glad to help.
小事情，我很高兴这样做。
How much is the rent for a month?
每月租金多少？
Then Von Frisch moved the dish to the east of the hive and waited for a marked bee to feed.
然后，冯·弗里施把碟子移到蜂箱的西边，等待有标记的蜜蜂来吃。