Polydicyclopentadiene
[化] 聚双环戊二烯
🗣️ 情景例句
Donald passed away a couple of years ago.
Donald几年前去世了。
You may go farther and fare worse.
一动不如一静。
But I must ask my parents first. What time shall I come?
不过我必须先问问父母。我几点钟来呢？