n. 1.认真，严肃，庄重。 2.重要性，严重性；危险性。 3.重量。 4.【物理学】重力，引力，地心吸力。 5.【音乐】(音调的)低沉。 短语和例子 acceleration of gravity重力加速度。 the centre of gravity重心，重点。 specific gravity比重。 null [zero] gravity无重力，失重。 keep one's gravity 持重，不苟言笑。
a manner that is serious and solemn 同义词：graveness, sobriety, soberness, somberness, sombreness,
a solemn and dignified feeling 同义词：solemnity,
(physics) the force of attraction between all masses in the universe; especially the attraction of the earth''s mass for bodies near its surface; "the more remote the body the less the gravity"; "the gravitation between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them"; "gravitation cannot be held responsible for people falling in love"--Albert Einstein 同义词：gravitation, gravitational attraction, gravitational force,
例句与用法
1.
The earth is round because of gravity . 地球是由于重力而成为球形的。
2.
We have to submit to law of gravity . 我们必须服从引力定律。
3.
This is a matter of the utmost gravity . 这件事情十万火急。
4.
A juggler really runs a race with gravity . 玩杂耍的人确实在跟地心引力竞赛呢。
5.
The stone rolled down the mountain by gravity . 这块石头由于重力作用而滚下山。
6.
Gravity holds a privileged position . 引力占有特殊地位。
7.
His gravity made us laugh immoderately . 他那一本正经的样子，使我们笑得不可开交。
8.
The gravity is measured by nulling the beam . 重力值是通过使横臂恢复零位而测定的。
9.
The lunar gravity is about one-sixth that on earth . 月亮的引力大约为地球的六分之一。
10.
With variations of gravity the weight rises or falls . 荷重随着重力的变化而升起或降落。
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