kick in

参见：kickin'

英语

kick in (第三人称单数简单现在时 kicks in，现在分词 kicking in，一般过去时及过去分词 kicked in)

(及物) 踢倒，朝里踢
Upon hearing residents in the burning house, the passerby kicked in the front door and yelled to those inside.
听到起火的房子里有居民，路人踢开了前门，朝里面的人大喊。
(及物，俚语) 踢；暴打
(不及物，俗语，尤指突然间) 起效；出现；启动；开始
- 2013, Richard Linklater, Julie Delpy and Ethan Hawke, Before Midnight (motion picture), Julie Delpy（演员）:
  People expect women [when they give birth] to have this instinct that kicks in.
  （请为本引文添加中文翻译）
- 2005, Sean Dooley, The Big Twitch, Sydney: Allen and Unwin，第 289 页:
  Once the wet kicks in up north, you can be stranded for months waiting for swollen rivers to subside to a crossable depth.]
  （请为本引文添加中文翻译）
You have to push the switch hard to get the heater to kick in.
你要用力推开关，才能把暖气打开。

I took my medication an hour ago, and it hasn't kicked in yet.
我一小时前服的药，现在还没见效。
(及物和不及物，俗语) 贡献，交（到某个筹款活动）
For the year-end party, we're asking each employee to kick in twenty dollars.
我们要求每个员工给年末聚会交20美元。

This is a worthy charity, so everyone should kick in.
这个慈善活动很有意义，每个人都应该捐点钱。