And the real driver for this is to make a fuel that’s usable with an existing engine.

而真正促使我们去做的是制造出一种可以用于现有的发动机的燃料。

Uber drivers use their own cars. They are not real taxi drivers. But they can take you places.

优步的司机是用他们自己的汽车。他们不是真正的出租车司机。但是他们可以拉你去目的地。

Beth was barely driving. She's not a real driver yet.

贝丝不算在开车 她还不是真正的司机。

You can try to forge a driver's license; make a driver's license yourself that looks like a real driver's license but isn't real.

您可以尝试伪造驾驶执照；自己制作一张看起来像真驾照但不是真的驾照。