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。

I fold up the chairs.

我把椅子折起来。

Let's fold up the futon.

让我们把蒲团卷起来吧。

Fold up your clothes/ coat/ trousers.

请叠好衣服/外套/裤子。

Fold up an inner box based on crease.

沿着折痕折叠好一个内盒。