effective

形容词

1. 1

   有效的、有效果的

   This medicine is very effective against seasonal allergies.

   这种药对季节性过敏非常有效。

2. 2

   生效的正式

   The new parking rules are effective from next Monday.

   新的停车规定自下周一起生效。

3. 3

   能干的、有能力的

   She is an effective manager who listens to her team.

   她是个能干的主管，会倾听团队的意见。

4. 4

   实际的、实质上的

   The company has effective control over three smaller factories.

   这家公司实际掌控著三间较小的工厂。