Diazohydroxide
重氮氢氧化物
🗣️ 情景例句
And they don't ask a married couple with no children Why don't you have any children?.
他们也不会问结了婚没有孩子的夫妇“你们为什么不要孩子？”。
Have you seen Mr. Smith recently?
最近你见过史密斯先生吗？
What was the date?
（昨天）是几月几日？