这一结果在向前运动的光圈。

This results in the forward motion of the aperture.

youdao

作用于空中的阻力阻碍飞机向前运动。

Drag hinders the forward motion of the aircraft.

youdao

有些科学家认为时间为何向前运动的原因有一种。

Some scientists believe there is one reason why time only moves forward.

youdao

If that's all it knows, then in that scenario there is no building or anything else; it continues a trajectory both forward in time and backward in time, and it says that whatever seconds, one second before you set your clock to 0, it would've been on the ground.

如果是这样,在那种模式下,没有楼房或者别的什么,物体的运动轨迹可以沿时间可以向后延伸,也可以向前延伸,不管时间取什么值,在零点前一秒时,物体就在地面上

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