Said trolley (7) has a trolley body (6) and rolling wheels set within its lower part.

台车(7)具有台车本体(6)和设置于下部的滚动轮。

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Said trolley (1) has a trolley body (2) and rolling wheels set within its lower part.

台车（1）具有台车本体（2）和设置于下部的滚动轮。

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David brought a little trolley on wheels, and most of the others produced useful bits and pieces secreted in pockets, away from parents 'eyes.

大卫带来一台装有脚轮的手推车。其他人都偷偷在口袋里装来了我们建房子要用的小东西，生怕被父母看见。

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