functional testing

例句：

1. 1. The software was functionally tested before release.
   软件在发布前进行了功能性测试。
2. 2. The new car'sperformance is highly functional.
   这款新车的性能非常出色。
3. 3. The team conducted a thorough functional testingof the new system.
   团队对新系统进行了彻底的功能性测试。