Personal trainers can range in experience and ability so be sure to check out their credentials before hiring anyone and make sure that they are really going to put you through your paces.

私人教练的经验、能力都各个不一，因此在雇佣之前务必核实他们的教练证书，并确保他们真的能够让你突破你的步调。

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Narrow your scope to a few candidates, obtain review copies, put them through their paces, choose your environment, and move forward.

将选择范围缩小到几种候选工具，找一些关于这些工具的评论，测试这些工具的性能，选择环境，然后接着前进。

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