We carried out several experiments to test the theory.我们做了多次实验来检验这个理论。

An investigation carried out several years ago revealed no new information.几年前所做的调查并没有发现什么新的线索。

She failed to carry out [=fulfill] her promise.她没能兑现诺言。

The town has plans to build a new school, but it currently lacks the money to carry them out.小镇计划修建一所新学校，但因最近缺乏资金而无法实施。

You'll be paid when you've carried out [=executed] your instructions/orders/duties.你完成了指令/执行了命令/履行了职责后就会得到报酬。