All by itself. He wasn't anywhere near it. It started all by itself.

车子自己发动起来的。他并没在汽车旁边。它是自己发动起来的。

But it's pretty cool all by itself.

但它本身相当酷。

And it drives completely by itself.

而且它完全是自动驾驶的。

The car responds and starts moving all by itself.

汽车全自动地回应和发动。

Let's listen to the phrase again, by itself.

来单一遍这个表。

By itself, obsession is not inherently problematic.

本身而言，执迷本身没有问题。

Treatment It may occasionally resolve by itself.

治疗它有时可能会自己消失。

Now, by itself, it's not a lot.

但现在它的产量不高。

Suddenly, the heavy door creaked open, all by itself.

突然，沉重的门吱嘎一声自动开了。

Independence by itself, isn't a bad thing.

立本身并不是一件坏事。

And that contrast would be startling by itself.

这种对比本身会令人吃惊。

This kingdom had no ruler; it simply went on by itself.

这个国家没有君主官长；一切自然。

None of this matters by itself.

这本身并不重要。

That data is evident by itself.

那个数据本身是明显的。

By itself it wouldn't be visible from Earth.

白矮星自身的光我们在地球上是看不到的。

It can be set to turn on by itself.

它可以设置为自动打开。

Let's listen to the phrase again, by itself.

来单一遍这个表。

Friction by itself will never move something, it'll just keep something from being moved.

本身的摩擦力不会移动物体但是我们只要算出最小值。

It doesn't make sense by itself.

它本身没有意义。

With Boeing's troubled capsule now flying home by itself.

波音公司陷入困境的太空舱现在自行飞回家。