Polyepoxide
聚环氧化物
🗣️ 情景例句
I was a member of the debate team.
我是辩论队的成员。
Let me put it this way.
让我这么说吧。
For a long time.I watched them scurrying around the base of the tree in bewilderment.
在很长一段时间里，我看见蚂蚁围着大树底部来回转悠，不知所措。