Pyrazolidyl
吡唑烷基
🗣️ 情景例句
To help scrub the building interior clean.
帮忙把建筑的内部擦洗干 。
How have you been?
你过的还好吗？
But there's another thing, Pierre. I have no jewellery to wear.
不过，比尔，还有一件事。我还没有首饰戴哩。