Celmide
二溴乙烷
🗣️ 情景例句
Sure I could. It's my turn to treat.
我当然可以这样。轮到我请客了。
His thinking is behind the times.
他的想法赶不上时代。
we can start any time you're ready.
只要你准备好了，我们随时可以开始。