Stand on a trunk with four wheels.
踩到一个带有四个轮子的行李箱上。
It made no noise, for its wheels were bound with straw and rags.
它没有发出任何声音，因为它的轮子是用稻草和破布捆着的。
让我们先从轮子开始。
But we have to learn with training-wheels.
但是我们要学会利用辅助来学习。
With this in mind, let's set up the wheels.
记住这个原理后，让我们设置转轮。
Most were two-seaters with just three wheels.
多数车只有三轮两座。
The vehicle had a square black tilt which nodded with the notion of the wheels .
马车有一个方形的黑布逢，随着车轮的转动而上下抖动。
Hard metals can be easily cut with grinding wheels.
硬金属可以很容易用砂轮磨削。
The vehicle had a square black tilt which nodded with the notion of the wheels.
马车有一个方形的黑布逢，随着车轮的转动而上下抖动。
It refers to vehicle driven by four wheels and with a high passage.
是指四轮驱动、具有高通过性的车辆。
Side guide system: with multiple roller wheels of small diameter.
侧规系统：多个小直径辊轮的固定侧规。
The phase with three wheels on the ground.
三轮着地滑跑阶段。
During these tests, the wheels must not be in contact with the ground.
在试验中，车轮一定不能接触地面。
As a result, he never again trusted any vehicle with less than four wheels.
从那儿以后，他再也不敢相信少于四个轱辘的交通工具。
As a result, he never again trusted any vehicle with less than four wheels.
从那儿以后，他再也不敢相信少于四个轱辘的交通工具。
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