shell

I found a beautiful pink shell while walking along the beach this morning.

(Chinese) 今天早上沿着海滩散步时，我发现了一个漂亮的粉色贝壳。

The turtle pulled its head and legs back into its hard shell for protection.

(Chinese) 海龟把头和腿缩回坚硬的壳里以求保护。