如果你需要饮料或去洗手间，你应该举手并征得老师的同意。

If you need a drink or to go to the restroom, you should raise your hand and ask for the teachers permission.

youdao

一间普通的旅馆要400美元/天，一瓶不含酒精的饮料在前厅卖到10美元（尽管在超市只售2美元）。

A bogstandard hotel room costs $400, a non-alcoholic drink in the lobby $10 (though a mere $2 in a supermarket).

youdao

当然，酒吧间的经营者只是把这部分“免费的”午餐的花费算到了他们出售的饮料的价格里面。

Of course, saloon proprietors simply incorporated the expense of this "free" lunch into the price of the beverages they sold.

youdao