Tetrachloride
[医] 四氯化物
🗣️ 情景例句
He was a dull man and you had to explain things very slowly to him.
他脑筋迟钝，你必须慢慢地给他解释事情。
It is not polite to eavesdrop on the conversation of other people.
偷听他人说话是很不礼貌的。
Excuse me. May I have a piece of paper, please?
请问，我可以要一张纸吗？