break in

[phrasal verb]

: to enter a house, building, etc., illegally非法强行闯入（房屋、建筑等）

— see also break into 1 (below), break-in

: to interrupt or disturb someone or something打断；插嘴

I was listening to my favorite radio program when a reporter broke in with news about a storm.我正在收听最喜爱的广播节目，突然间插播了暴风雨来袭的天气预报。
We were having a chat when he rudely broke in (on it).我们正聊着天，他突然无礼地插嘴。

— see also break into 4 (below)

break in or break (someone) in or break in (someone) : to start or help (someone) to start a new activity, job, etc.开始从事；培养

Baseball was very different when he first broke in [=started playing] as a catcher in 1962.*1962年他刚开始做接球手的时候，棒球运动和现在的大不一样。
The job involves a wide variety of tasks, so we try to break new employees in gradually.这份工作涉及方方面面的事情，所以我们设法逐步培养新员工。
The band is breaking in a new backup singer.乐队正在培养新的后备歌手。

break (something) in or break in (something)

a : to use (something, such as a new pair of shoes) for a period of time so that it becomes comfortable（使用一段时间后）使（新鞋等）变舒适

The shoes were tight when she first got them, so she broke them in by wearing them around the house for a few days.她刚穿那双鞋时觉得有点紧，所以在家穿着走了几天使鞋合脚。

b : to operate (a new machine) carefully for a period of time until it is ready for regular use磨合（新机器）

You shouldn't drive a new car too fast while you're breaking it in.新车正处在磨合期，你不应该开太快。

break-in

1 ENTRIES FOUND:

break-in /ˈbreɪkˌɪn/ noun

plural break-ins

break-in

/ˈbreɪkˌɪn/

noun

plural break-ins

Learner's definition of BREAK-IN

[count]

: the act or crime of illegally entering a house, building, etc., especially by using force破门而入；闯入

There was an attempted break-in at our house while we were away.我们外出时，有人试图破门而入。

— see also break in at ¹break