Definition: to start to be effective or to happen Level: C1
新税率下个月生效。
The new tax rate ___kicks ___in next month.
当药物生效时，疼痛会减轻。
When the medication ___kicks ___in, the pain will subside.
新政策将在年初开始生效。
The new policy will ___kick ___in at the beginning of the year.
