Pentachlorinated
五氯化的
🗣️ 情景例句
He ofter overdrafts his account.
他的账户经常透支。
Does your friend speak English?
你的朋友说英语吗？
No one could account for the fact that one of the boxes was extremely heavy.
其中有只箱子特别重，可谁也弄不清是怎么回事。