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1·The vehicle has two seats, four wheels and wings that fold up so it can be driven like a car.

这辆交通工具有两个座椅，四个轮子和可折叠的机翼，因此可以当作车辆驾驶。

2·I fold up the chairs.

我把椅子折起来。

3·Let's fold up the futon.

让我们把蒲团卷起来吧。

4·Fold up your clothes/ coat/ trousers.

请叠好衣服/外套/裤子。

5·Fold up an inner box based on crease.

沿着折痕折叠好一个内盒。

6·Fold up the chairs.

把椅子折起来。

7·Most umbrellas fold up, so it's easy to carry them.

大部分的伞可折叠，所以携带方便。

8·What drives this polypeptide chain to fold up?

是什么趋势这些多肽链折叠呢？

9·I fold up the bedding and put it in the closet.

我折叠寝具把它放在柜子里。

10·I fold up the bedding and put it in the closet.

我折迭寝具把它放在柜子里。