running in
US /ˈrʌnɪŋ ɪn/
UK /ˈrʌnɪŋ ɪn/
片語動詞
1.
磨合, 試運行
to break in a new engine or vehicle by driving it carefully at moderate speeds for a period of time
範例:
•
You need to spend some time running in the new car before driving it at high speeds.
在新車高速行駛之前，你需要花一些時間磨合。
•
The mechanic advised me to run in the engine for the first 500 miles.
機械師建議我在最初的500英里內磨合發動機。
2.
跑進來, 衝進來
to enter a place quickly or unexpectedly
範例:
•
The children came running in from the garden when it started to rain.
下雨時，孩子們從花園裡跑進來。
•
He suddenly ran in and announced the good news.
他突然跑進來宣布好消息。