Diphosphane
二膦, 二磷烷
🗣️ 情景例句
Can you do me a favor?
你能帮我个忙吗？
Action speak louder than words.
事实胜于雄辩。
Just a minute. I'll see if I'm free. No, I'm not. I've already got something on that evening.
等一会。我看看是否有空。不，我没空。我那天晚上已经有了安排。