Polyyne
聚炔烃
🗣️ 情景例句
That's the worst part--making decisions.
最伤脑筋的是要作决定。
Honest men marry soon, wise men not at all.
诚实的人马上结婚，聪明的人就不这样。
Permission was granted and a policeman accompanied him to a pay phone.
警察同意了，陪他来到一个投币地电话前，