test condition

例句：

1. 1. The engineer tested the new machine under various conditions.
   工程师在不同的条件下测试了这台新机器。
2. 2.The experiment was designed to test the effectiveness of the new drug.
   这个实验旨在测试新药的效果。
3. 3.The team conducted a series of tests to ensure the equipment worked correctly.
   团队进行了一系列的测试，以确保设备正常工作。