When you're falling to the surface of the Earth, you are describing a problem of constant acceleration.
当你讨论下落问题时,你在描述一个加速度恒定的问题
耶鲁公开课 - 基础物理课程节选
Regolith is a fine powder formed by a constant rain of small meteorites that breaks up the rocks at the surface.
ECONOMIST: Spaceflight
But beneath the surface, there is the CIA officer's constant and often uncharitable assessment of the target's aspirations, fears and desires.
WSJ: The Spy Who Turned Me
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