Aspens have long roots that burrow through the soil.

杨有着钻透土壤的长根茎。

With no vegetation and no roots to reinforce them, nothing holds the soils back.

没有植物和根茎的加固，土壤被雨冲走。

21. Wrap your celery stalks in tin foil.

21. 用锡纸把芹菜根茎包起来。

Things like root veggies also produce heat.

根茎类蔬菜也会产热量。

So hidden from our eyes, plant roots are colonized by a fungus called arbuscule mycorrhizae.

隐藏在我们的眼皮底下，植物的根茎被一种叫做丛枝菌根的真菌定殖。

So what does a root covered in fungi have to do with our global economy?

那么被真菌覆盖的根茎和我们全球经济有什么关系？

Root vegetables -- such as carrots, beets, and parsnips -- do not transplant easily.

根茎类蔬菜，如胡萝卜、甜菜和防风草，不容易移植。

But potatoes have more protein than these other kinds of roots or tubers.

但是土豆比其他种类的根茎或块茎含有更多的蛋。

Even its single deepest root, the taproot, extends less than one meter into the ground.

就连它最深的根茎，直根，往地面下延伸也不会超过一米。

It's, I think it's a type of a root.

对，我想是一种根茎植物。

They are herbivores, dining on tree bark, grass, fruit, and roots.

它们是草食动物，以树皮、草、水果和根茎为食。

More will leak if you cut or otherwise wound the stems again, though.

如果你切断根茎，或者只要伤害根茎又会造成汁液泄露。

They spend more energy on their leaves, trunks and roots than on their acorns.

比起橡果，它们给予叶子、树干以及根茎的能量会更多。

I can smell. Yeah, I can smell. Root vegetables, like sweet potato or swede.

我能闻到。对，我能闻到。根茎蔬菜，比如红薯或瑞典甘蓝。

They looked wonderful with the golden flowers and green stems.

在蒲公英金黄花朵和嫩绿根茎的映衬下他们看上去漂亮极了。

It was a flower white as snow with thin green stripes.

这是一朵有着细细的根茎并且洁如雪的花。

You see that on that stalk, there's this brown bulbous thing attached.

你看那根茎上，有这个棕色球茎状的东西附着。

I grow underground because I'm a root veggie.

我长在地下，因为我是根茎蔬菜。

I'm a root vegetable with a long brown stem.

我是一种根茎蔬菜，有长长的棕色的茎。

It's the season of root vegetables, squashes and coziest recipes as well.

这也是根茎类蔬菜、南瓜和最惬意食谱的季节。