The students tested out their cost-cutting ideas in several companies.

学生们在几家公司试验了他们降低成本的构想

They opened a single store in Europe to test out the market.

他们在欧洲开了一家商店，检验一下市场情况。

His work is to test out new designs of cars before they are put on the market.

他的工作是在新设计的汽车投入市场之前对它们进行检验。

We are now ready to test out the code.

现在我们已经准备好测试代码。

You'll also need to test out your design ideas.

您还需要测试您的设计思想。

They test out new ideas, behaviors, or approaches.

实验也可以对那些新的想法，行为或是方法做出检验。