running-in的用法和樣例：
例句
- I need to break in these new shoes.
我得把這雙新鞋磨合磨合。 - Don't drive your new car too fast until you've run it in.
新汽車未經磨合運轉不要開得太快。
辭彙搭配
- in the running 參賽
- running in period 磨合期
- running in 試車(配研)
- in running condition [化] 在運轉情況下...
- in-running rolls 對向迴轉的滾筒...
- running-in time 磨合時間
- running-in test 運行試驗
