Pentachlorobenzene
五氯苯
🗣️ 情景例句
That's a very interesting question.
这是个非常有趣的问题。
I only wear a tie on special occasions.
我只有在特殊场合才带。
No! I mean, have you seen how dirty the water is? It looks as if it isn' t clean enough to bathe here.
不！我的意思是您有没有看见海水有多脏？看起来海水好象不干净，不能游泳。