在过去出租你的房间或租用闲置豪华车总是在理论上具有可能性，但现在，通过一个公共系统，这个愿望可以以很便宜的方式实现。

It was always theoretically possible to rent out your room or pick up a fare in between jobs, but now it can be done cheaply and through a common system.

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因此，动力不是外在所能表现出来的，它是一个人内在的愿望，希望通过表现和活动来实现理想目标。

Therefore motivation cannot be inflected from outside but it is an intrinsic desire in a man to achieve the target goal through performance or activity.

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