昨晚我们办公室发生了入室盗窃，电脑全被偷走了。

There was a ___break-in at our office last night, and all the computers were stolen.

这条新牛仔裤需要几天磨合才会变得舒适。

It takes a few days of ___break-in for these new jeans to feel comfortable.

新兵的前两周是适应期，主要是熟悉军营生活。

The first two weeks for new recruits are a ___break-in period to get used to military life.