Dbd
[化] 二溴卫矛醇
🗣️ 情景例句
No, it's not taken.
没有 ，没人坐。
I was writing some letters to friends of mine.
我在写一些信给我的朋友。
I was very glad when the boys won the relay race.
我非常高兴，男同学在接力赛中获胜。