gravity

Compared meaning: the force that attracts objects to each other (noun).

比较义项：物体间的引力、使物体下落的力（名词）。

• gravity 本词

  The common, everyday word for the force that pulls things toward the earth; used in ordinary speech and fixed phrases like 'center of gravity' or 'zero gravity'.

  日常用语，指把物体拉向地面的力，常用于口语及固定搭配，如“center of gravity（重心）”“zero gravity（失重）”。

  Gravity makes the ball roll down the hill and stop at the bottom.

  重力使球滚下山坡，最后停在坡底。

• gravitation

  A more formal, technical term used especially in physics for the mutual attractive force between any two masses, not just the earth pulling on something.

  较为正式、专业的科学术语，尤用于物理学中，指任意两个物体之间的相互吸引力，而不仅仅是地球对物体的吸引。

  The scientists studied the gravitation between the two orbiting black holes.

  科学家们研究了这两个相互绕转的黑洞之间的引力。

Gravity and gravitation both mean the force that pulls objects together. Gravity is the common, everyday word for the force pulling things toward the earth. Gravitation is a more formal, technical physics term for the mutual force between any two masses, not just the earth.

这两个词都指使物体相互吸引或使物体落向地面的力，意思相近，但语域不同：gravity 是日常用语，多指地球对物体的吸引力，常见于口语和固定搭配；gravitation 是更正式、更专业的物理学术语，强调任意两个物体之间的相互引力，多见于科学语境。