The purpose of tears is to help keep your eyes lubricated.

眼泪的目的是帮助保持眼睛润滑。

Our eyes need to be lubricated for us to see clearly through.

我们的眼睛需要润滑，才能看清楚。

It lubricates your eyes so you can blink.

它湿润你的眼睛使你能够眨眼。

Caffeine lubricated the discussion in a way that alcohol-a depressant-never could.

咖啡因以一种酒精（属于抑制剂）永远无法做到的方式成为了这种讨论的润滑剂。

Earth has enough water to lubricate its plate tectonics.

地球有足够的水来润滑它的板块构造运动。

Snail slime is a lubricating mucus the animals ooze as they slide along.

蜗牛粘液是蜗牛爬行时分泌的一种润滑粘液。

It like lubricates everything and then it's like cool.

它能润泽所有的部位，这真的很酷。

But these punctuations are actually powerful framing devices that lubricate the content of his message.

但这些标点实际上是强大的框架机制，用来给他信息里面的内容润色。

Their oil could lubricate machinery and light up a room.

它们的油可以用来润滑机械或提供照明。

So, boosting the omega-3 fatty acids from fatty seafoods is one way to, you know, keep your joints lubricated.

所以从富含脂肪的海鲜中大量摄取 omega-3 脂肪酸是一种保持关节润滑的方法。