研究人员计划对气候变化进行一次详细研究。

The researchers plan to ___carry ___out a detailed study on climate change.

为了诊断问题，我们需要再执行几项测试。

To diagnose the issue, we need to ___carry ___out a few more tests.

他总是信守诺言，所以你可以信任他。

He always ___carries ___out his promises, so you can trust him.