trail run的用法和樣例：
例句
- At present, the system has entered the test run phase.
目前該系統已進(jìn)入試運行階段。 - It is understood that the airport is the second Hailar Hohhot in Inner Mongolia Airport after a second trial run of the airport business.
據了解，海拉爾機場(chǎng)是繼呼和浩特機場(chǎng)之后內蒙古地區第二個(gè)試運行此項業(yè)務(wù)的機場(chǎng)。
