trial run

名词 trial run:

1. trying something to find out about it
   同义词：trial, test, tryout

1. She's taking the exam a year early, just as a trial run (for the real thing).
   她提前一年参加考试，算是(正式考试的)试考。
2. The machine, however, failed on its trial run.
   但这部机器的试车失败了解。
3. The programme was given a trial run to gauge viewers' reactions.
   该节目进行了试演以了解观众的反应。
4. Take the car for a trial run to see if you like it.
   试试那辆汽车，看看你是否满意。