And in order to achieve this reversal, what we do is we apply a pressure to the high-concentration side and in doing so, we drive the water the opposite direction.

为了实现这种逆转，我们所做的是向高浓度侧施加压力， 并以此将水推向相反的方向。

Today we're giving driving directions to someone who is lost, driving here in Los Angeles, and I talk a lot about driving here in Los Angeles because everyone has a car and everyone drives.

今天我们要给在洛杉矶开车迷路的人指路，我经常谈论在洛杉矶开车， 因为每个人都有车， 每个人都会开车。