Polydicyclopentadiene
[化] 聚双环戊二烯
🗣️ 情景例句
Richard, isn't that too much to ask of your mother?
Richard，那是不是太麻烦你母亲啦？
My cousin is a member of a riding club, He seems riding.
我的表兄是一个骑马俱乐部成员，他似乎很喜欢骑马。
Not too bad.I think I passed in English and Mathematics.
不算太坏，我想我的英语和数学及格了。