take effect
US /teɪk ɪˈfekt/
UK /teɪk ɪˈfekt/

1.
生效, 起作用, 奏效
to become operative or effective; to begin to have an effect
:
•
The new law will take effect next month.
新法律將於下個月生效。
•
It may take some time for the medication to take effect.
藥物可能需要一些時間才能生效。