1. The turtle at last gives up by pulling his feet under his shell and the game is over.
    海龟终于屈服了，将4条腿缩进壳内。游戏到此结束。

2. Then Columbus took the egg and struck its small end gently upon the table so as to break the shell a little.
    于是哥伦布拿起那只蛋，把尖的一头轻轻往桌上一磕，敲碎一点蛋壳，

3. As the turtle swims across the oceanarium, the first porpoise swoops down from above and butts his shell with his belly.
    当海龟游过水族馆时, 第一只海豚从上方猛扑下去, 并用腹部撞击龟壳.

4. A turtle has a hard shell.
    海龟有着坚硬的壳.

5. Almost any day a young porpoise may be seen trying to turn a 300-pound sea turtle over by sticking his snout under the edge of his shell and pushing up for dear life.
    几乎每天都可以看到一只小海豚把鼻子顶入一只300磅重的海龟的硬壳下面，拼命地把它翻过来。

6. And so with solids such as a shell, a nut, a plum, a peat, a tadpole, a mushroom, a mountain peak, a kidney, a carrot, a tree-trunk, a bird, a bud, a lark, a ladybird, a bulrush, a bone,
    对于其他实体，如，贝壳、核桃、李子、梨子、蝌蚪、蘑菇、山峰、肾脏、胡萝卜、树干、鸟儿、花蕾、云雀、瓢虫、芦苇以及骨头也应这样来感觉。

7. She crumbled an empty snail shell in her fingers.
    她用手指捏碎了一个空蜗牛壳。

8. The first porpoise swoops down from above and butts his shell with his belly.
    第一只海豚从上方猛扑下去，用腹部撞击龟壳。

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