a dose of

• adj. 一服(一次)

a dose of的用法和样例：

例句

用作形容词 (adj.)

1. Failing the exam was a hard dose to swallow.
   考试不及格是一服难咽的苦药。
2. Your criticism had a sobering effect on me.
   你的批评对我是一服很好的清凉剂。