It's important to runin new shoes to avoid blisters.

磨合新鞋子很重要，以避免起水泡。

The team had a few weeks to runin before the big game.

团队在大赛前有几周的时间进行磨合。

You should runin the new car for the first 1,000 miles.

你应该在前1000英里内磨合新车。

The software needs a period to runin and identify any bugs.

这款软件需要一段时间进行磨合，以发现任何漏洞。

The new engine needs to runin before it can perform at its best.

新发动机需要磨合才能达到最佳性能。