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

它喝树根的汁液，而它被一层硬壳包裹着。

The turtle is protected by its hard shell.

龟受到它的硬壳的保护.

It have a little head and a hard shell.

它有一个小的头和坚硬壳。

That is, the crab sheds its hard shell and forms a new one.

也就是说，螃蟹褪掉原有的硬壳再重新长出新壳。

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。

A series of research on preparation technique of hard-shell pumice concrete are researched.

对硬壳浮石骨料混凝土的制备工艺进行了研究。

When a blue crab sheds its hard shell, its exoskeleton, it has to wait about aweek for the new shell to harden.

当一只青蟹褪掉了它的硬壳之后，新长出的壳要等上大概一个星期才能变硬。

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。

It's a trim-fitting insulating jacket that can be worn as a layer under a hard shell to provide warmth, or by itself as a wind and water-resistant jacket.

这是一件剪裁修身的夹克，可以穿在硬壳里面作为保温层，当然，本身也可以作为一件防风防水的夹克。

Pack items in a large duffel bag rather than a hard-shell suitcase for easy handling under diverse conditions campers may encounter during transit.

用大的行李袋来打包物品，而不是用硬壳的手提箱，以便露营者在旅途中的任何情况下都方便携带。