Employees should avoid alcohol at the company dinner because its depressant effects impair judgment.

員工在公司聚餐時應避免飲酒，因為酒精的抑制作用會影響判斷力。

The pharmacy label warns that this depressant medication may cause drowsiness while driving.

藥局標籤警告，這種鎮靜類藥物可能在開車時引起嗜睡。

Before the long flight, the doctor advised against taking depressant drugs with sleeping pills.

長途飛行前，醫生建議不要將鎮靜類藥物與安眠藥一起服用。