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单词 gravity
释义
grav·i·ty (grăvĭ-tē)
n.
1. Physics
a. The natural attraction between physical bodies, especially when one of the bodies is a celestial body, such as the earth.
b. See gravitation.
2. Grave consequence; seriousness or importance: They are still quite unaware of the gravity of their problems.
3. Solemnity or dignity of manner.

[French gravité, heaviness, from Old French, from Latin gravitās, from gravis, heavy; see gwerə-1 in the Appendix of Indo-European roots.]
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