It's got a hard shell on the inside.

内部有一个坚硬的壳。

Turtles and tortoises have hard shells which protect their bodies.

龟有坚硬的龟壳来保护它们的身体。

And they come in their own very hard shell.

它们都有非常坚硬的外壳。

Firstly, Annie boiled the chestnuts to remove the hard outer shell.

安妮首先把栗子煮熟然后去壳。

Once the ducks have been air-dried, the skin forms a harder shell.

一旦鸭子被风干，鸭皮上就会形成一层更硬的壳。

And it has a very hard outer shell, you said that, right?

它的外壳非常坚硬，你也这么说过，对吗？

What makes a bird egg so eggstra cool is this hard shell.

让鸟蛋如此特别酷的是这种坚硬的外壳。

A gourd, however, is a kind of decorative fruit with a hard shell.

然而，葫芦是一种外壳坚硬的装饰性水果。

Its soft body is protected by two hard shells, between which it lies.

它柔软的身体躺在两片坚硬的甲壳之间, 让这两片甲壳来保护。

Some hard shelled beetles, like this one, are of no interest to scorpions.

一些像这样的硬壳甲虫不对蝎子的胃口。

It's got a hard shell on the inside. Their shoes are extra durable.

衣服里面一个坚硬的壳。他们的鞋子也十分耐用。

Machines spray the insides with coloured sugar to give the beans their hard shells.

用机器在里部填充彩糖，形成坚硬外壳。

This is like my favorite Mexican food thing to eat, crunchy, hard shell, meat inside?

这就像我最喜欢吃的墨西哥食物，脆脆的、有硬壳、里面有肉？

Coconuts are protected from being eaten on their travels by having a hard, thick shell.

椰子坚硬的厚壳能够在旅途中保护它们不被吃掉。

Instead, they have a hard outer shell, called an exoskeleton, that gives them their structure.

相反，它们有一个坚硬的外壳，称为外骨骼，这让它们的身体有了支撑。

Birds lay eggs, but unlike the eggs of reptiles, birds' eggs have hard shells.

鸟类产蛋，但不像爬行类的蛋，鸟类的蛋有坚硬的壳。

Yeah, we found mostly those tiny shellfish that have strong hard shells that act as protection.

对，我们在那儿发现的大多都是些小小的贝类，就是那些用硬壳来保护自己的生物。

Under the surface lies its best defense against attack: a hard shell on its belly.

在这表面之下，是它应对攻击的最好防御：肚子上一层坚硬的壳。

A " nutcracker" is a tool to open, or crack, the hard shell of a nut.

“胡桃夹子”是一种打开坚果坚硬外壳的工具。

The sea urchin is kinda a round, spherical hard shelled creature with a bunch of spikes sticking out of it.

海胆是一种圆形的球形硬壳，上面有一堆尖刺。