effective

形容詞

1. 1

   有效的、有效果的

   This medicine is very effective against seasonal allergies.

   這種藥對季節性過敏非常有效。

2. 2

   生效的正式

   The new parking rules are effective from next Monday.

   新的停車規定自下週一起生效。

3. 3

   能幹的、有能力的

   She is an effective manager who listens to her team.

   她是個能幹的主管，會傾聽團隊的意見。

4. 4

   實際的、實質上的

   The company has effective control over three smaller factories.

   這家公司實際掌控著三間較小的工廠。