Polycyclopentadiene
聚环戊二烯
🗣️ 情景例句
We'd like to make a reservation for this weekend.
我们想预订一个这个周末的房间。
Sure. Should I check your radiator?
好的。要不要检查一下散热器？
When everyone had taken his/her place, the lawyer spoke as follows.
当大家都入座以后，律师作了如下的发言