Because gravity is in this direction.

因为重力是这个方向的。

youdao

Because gravity is the only force that does work.

因为重力是，唯一作用的力。

youdao

It should make no difference because gravity is a conservative force.

这没有区别,因为重力恒定。

youdao

Because of the gravity on Mars, spacesuits may have to be designed to be lighter than suits used in orbit or on the moon.

VOA: special.2011.04.06

It's wrong to think that you feel weightless because you escaped the pull of gravity.

但是要是你认为失重,就是不受重力那就大错特错了

耶鲁公开课 - 基础物理课程节选

They moved easily and quickly, because the moon's gravity is six times less than Earth's.

VOA: special.2009.07.15

This works because gravity holds you firmly on the ground, and your feet stay put because of friction with the floor.

CNN: Kepler or not, we'll find life in space

Because gravity pulls on light as well as matter, when light passes by a heavy object it bends as though it is passing through a lens.

ECONOMIST: Cosmology

Because gravity is real.

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