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1·It drinks juice from tree roots and it is covered in a hard shell.

它喝树根的汁液，并且有一层硬壳覆盖着。

2·On the inside there's a seed with a hard shell.

在这里面有一颗有硬壳的种子。

3·The hard shell on a beetle is an outside protection, as is the skin, called cuticle, of an earthworm.

甲壳虫身上的硬壳是外表保护层，就像蚯蚓的“皮肤”，它叫角质层。

4·The particular design of muscles and bones in the neck and limbs of the turtle allow that it can draw in its exposed parts such that an attacker can find nothing but hard shell to bite.

海龟颈部和四肢的肌肉及骨骼的特殊设计使它能把暴露在外的部分缩回去，这样攻击者只能去咬坚硬的外壳。

5·The tender lobster meat is worth the effort of cracking the hard shell.

柔软的龙虾肉值得费力剥开硬壳。

6·Crab sheds its hard shell, its exoskeleton, it has to wait about a week for the new.

当一只青蟹褪掉了它的硬壳(也就是它的外骨骼)之后，新长出的壳要等上大概一个星期才能变硬。

7·The first item on the list would be a hard shell case for transporting the guitar.

第一项的清单将是一个硬壳案件运送吉他。

8·A local bakery even covered it with a hard shell, to stop the fruit from bleeding through.

当地一家烘焙店还专门用硬壳将蛋糕包裹起来，以防止水果渗出。

9·Scab wound will slowly into a hard shell, but hidden under this hard shell, or a soft heart.

赤霉病伤口会渐渐变成一个坚固的外壳，但这种坚固的外壳下隐藏的，或许心一软。

10·As long as more rest, eat some fruit, and the hard shell of things, very good for the children.

只要多休息，多吃一些水果，和硬壳的东西，对孩子很有好处的。