Yeah, a tractor is heavy. Ooh, it's getting really loud! Um..uh..what is light?

对，拖拉机很重。哦，越来越吵了！嗯，什么是轻？

He says the new lighter and stronger composites could build solar panels or even structural systems.

说，新更轻更坚固复合材料可以建造太阳能电池板，甚至是结构系统。

Because this flowing substance is lighter than the rocks around it, it rises.

因为这种流动物质比它周围岩石轻，所以它会上升。

Like the theropods, these titans used air sacs to breathe and had light, hollow bones.

像兽脚亚目一样，这些巨人使用气囊来呼吸，而且有很轻中空骨骼。

In this lesson you can learn about weak forms in English.

在本课，您可以学习英文轻读音。

Can you see any other weak forms in our sentence?

您还可以在我们句子里看到轻读音吗？

And a very light release of a true T there.

这里有一个非常轻正 T 音。

Again, super light true T and then a schwa.

也是一个非常轻正 T 音加上一个弱央元音。

The thief was given a milder punishment than he deserved.

那小偷受到惩罚比应得轻。

A water molecule is made from two very light atoms, hydrogen and oxygen.

水分子由两种非常轻原子组成，氢和氧。

But it was better at reducing pain than a lighter blanket.

但它比更轻毯子更能减轻疼痛。

Sea turtles have flatter, lighter shells for streamlined gliding through the water.

更扁更轻龟壳方便海龟在水中滑行。

Jupiter's spinning gasses attracted light elements, and overtime grew bigger and bigger in the process.

木星旋转气体吸引了轻元素，在这过程中成长得越来越大。

They pulverize the lunar surface, generating a dusty blanket of gravel light material, called regolith.

它们研磨着月球表面，产生了轻物质沙尘飞扬，所谓风化层。

Now the '-th' sound is very, very soft.

'-th' 这个音是非常，非常轻。

In the long run Cainiao's asset-light model may enable it to keep spending in check.

从长远来看，菜鸟轻资产模式也许能够控制开支。

In fusion, light nuclei merge — or " fuse" — to form one heavier nucleus.

在核聚变过程中，轻原子核合并——或者“聚变”——形成一个较重原子核。

Then she spoke in a voice so low Wilbur could hardly hear the words.

接着它用那么轻声音说话，威尔伯好不容易才听出来它在说什么。

So I like the fact that Google sheets is low commitment.

所以我喜欢谷歌表格轻负担。

Now imagine you're lifting like a really lightweight.

现在想象一下你在举一个非常轻重量。