Fires thin out the dense, flammable undergrowth.

野火使原本茂密、易燃的得稀疏。

The uterine walls are really thinned out.

子宫壁会得非常。

Up this high, the trees start to thin out.

这里海拔高，木都开始得稀疏了。

Thin the top out a little, but just a little.

头顶部分可以打一点，不过只剪一点就好。

Smaller fires used to happen naturally which thinned out the forests.

过去，较小的火灾通常是自然发生的，这会使森林得稀疏。

By the time she came back, the queue had thinned out a little.

等她回来时，排队的人已经少了一点。

Eventually, the gas expands so much it thins out, and it stops glowing.

最终，气体会膨胀到，停止发光。

Lake beds evaporated and then filled, herds thinned out and then grew bigger.

湖床干了又湿，兽群数量减了又增。地被阳光炙烤后，又被雨水淹没。

You had full trains well past 2, and then things seemed to thin out.

因为凌晨两点以后还有地铁运行，所以客流量得到了缓解。

You can't leave until the crowd thins out, 'cause you just keep bumping into people.

在人群散去之前你不能离开，因为你总是撞到人。

As the universe expands, dark matter thins out until it can no longer compete with dark energy.

随着宇宙的膨胀，暗物质越来越稀，最后无法再与暗能量抗。

But it's not clear that instructors can foster a love of reading by thinning out the syllabus.

但目前尚不清楚教师能否通过精简教学纲来培养学生对阅读的热爱。

In the case of the universe, things didn't thin out enough for light to escape until much later.

就宇宙而言，直到很久以后，物质才得足够，光才会逸出。

Sometimes that's because the gas thins out, so there's not enough stuff there to get lit and see.

有时那是因为气体稀了，所以没有足够的物质可以被点燃和看到。

As you get further down, the oil thins out.

当你继续往下走时， 油会稀。

Illicit logging, mostly for building materials to house the region's booming population, has thinned out the periphery of the forest.

为了给急剧增加的人口提供住房，人们量砍伐木，当作建筑材料，造成了红林边缘的退化。

And I'm thinning it out as I'm doing it.

我在做的时候正在把它。

The crowd has thinned out in here.

这边人少了。

” The clouds thinned out a little more.

” 云层又了一些。

The crowd had thinned out and only a few tables were occupied.

人群已经稀疏， 只有几张桌子被占用。