Pentafluoroguanidine
五氟化胍
??? 情景例句
Well, the company has some financial problems. People there are all thinking of quitting.
是這樣的，公司有些財政困難。人們都在想辭職。
You may know the horse by his harness.
欲知馬如何，可看套馬索。
He quickly became the leader.
他很快就成了領袖。