Difluorodibromomethane
二氟二溴甲烷
🗣️ 情景例句
I sure did.
我的确有。
But after one week and I still hadn't made a single sale, my heart was in my boots.
但过了一星期还没有做成一笔生意，我感到十分焦急。
I'm mending a clock.
我在修表。