Nitropropiol
[医] [邻]硝基苯丙烯酸
🗣️ 情景例句
If you're ever in Xi'an, look me up. I'd love to see you again.
如果你来西安，一定要来找我，我很想和你再见面。
This problem is hard to solve.
要解决这个问题不简单。
It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.
不久，一架直升飞机飞抵飞机失事现场，来搭救这几个幸存者。