1.  try out
2.  on trial
3.  on probation

• 1. 试用: on probation | trial | try on
• 2. 试用期: trial period | probation period
• 3. 测试用例: Test case | testing case | Test Cottom | test use case

更多释义

• 1.这台机器我们已经试用了一个星期。
  We had the machine on trial for a week.
  dict.yoduao.com
• 2.试用期结束后，你将成为终身雇员。
  At the end of the probationary period you will become a permanent employee.
  dict.yoduao.com
• 3.他得以试用了所有的新软件。
  He got to try out all the new software.
  dict.yoduao.com

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