它可以通过由人们呼吸和心跳所引发的，反射无线电波产生的扭曲，来探测障碍的另一边是否有人存在。

It can detect the presence of people on the other side of a barrier by distortions to the reflected radio waves caused by their breathing or heartbeat.

youdao

这个例子很好地说明了这样一个问题：如果不使用并行 Web 技术，由人生成的内容（即使是通过 blog 发布工具生成）不容易被机器理解。

This is a good example of how content generated by humans (even through blog publishing tools) is not easily understood by machines without the use of a parallel Web technique.

youdao

是由人们在两架钢琴上通过六个动作演奏出来的。

It is played by humans on two pianos through six movements.

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