藥效開始漸漸減退。

The effects of the medicine were wearing off.

Source: Tatoeba

Sentence Composition

1 藥效 yàoxiào medicinal effect
2 開始 kāishǐ
  1. to begin
  2. beginning
  3. to start
  4. initial

classifier: 個
3 漸漸 jiànjiàn gradually
4 減退 jiǎntuì
  1. to ebb
  2. to go down
  3. to decline