Tricyclopentadienide
三环戊二烯化物
🗣️ 情景例句
Robbie went to pick up the clip-on bow ties.
Robbie去拿夹上去的领结。
All are not friends that speak us fair.
向我们说好话的并不都是好朋友。
I spent the whole day in my room, but I did not write a single card!
我在房间里关了整整一天。然而竟连一张明信片也没写成！