Tosyl
[化] 甲苯磺酰基
🗣️ 情景例句
Yes, I know that.
是的 ，我知道。
Friendship multiplies joys and divides griefs.
友谊可以增添欢乐，可以分担忧愁。
Excuse me. Is there a police-station near here?
请问，附近有警察局吗？