trailn.踪迹；小径；尾；一系列vi.拖；落后于vt.追踪；拖拽；尾随trail breaker开路先锋trail herding定线放牧trailing link纵向推力杆trail printer后联打印机trail my coatvi.故意寻衅(故意引起争端)trailing byte结尾字节trailing leaf节流挡板trailing hook尾端弯钩trailing wire下垂天线trailing edgen.(飞机的)机翼后缘

1. At present, the system has entered the test run phase.
   目前该系统已进入试运行阶段。
2. It is understood that the airport is the second Hailar Hohhot in Inner Mongolia Airport after a second trial run of the airport business.
   据了解，海拉尔机场是继呼和浩特机场之后内蒙古地区第二个试运行此项业务的机场。