Hydrochlorofluorocarbon
氟氯烃化合物
🗣️ 情景例句
Tomorrow morning after lifting weights,I'll try aerobics.
明早举完重，我去试试有氧运动。
We do business on a commission basis. A commission on your prices would make it easier for us to promote sales. Even 2 or 3 percent would help.
我们是通过取得佣金来进行商业活动的。从你方价格中收取佣金，便于我方推销。即便只有2%或3%也行。
My name is Jim Green. I am twelve. This is my school. It is No. 14 Middle School.
我叫吉姆·格林。我12岁了。这是我的学校，这是第十四中学。