knock one back

• vt. 喝一杯酒

例句

用作及物动词 (vt.)

1. He would pass out if he took one more drink.
   要是他再喝一杯酒的话，他就会醉倒了。
2. This diet allows you one glass of wine a day.
   这种规定饮食可让你每天喝一杯酒。