force可数吗书上说的是a force that keeps us from floating in the the air.这么说可数啦?

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force可数吗书上说的是a force that keeps us from floating in the the air.这么说可数啦?
force可数吗
书上说的是a force that keeps us from floating in the the air.这么说可数啦?

force可数吗书上说的是a force that keeps us from floating in the the air.这么说可数啦?
具体是可数还是不可数要在具体语言环境中体现,你可以只记一方面,记住可数的,其他方面大多为不可数了.在牛津词典的标注中,一种含义的注释前面都有 [C,U],
force意为“力”,常指促使物体运动的力,也可指势力、武力或暴力,既可以做可数名词,又可以做不可数名词,要结合具体语境和意思.在你举的那个例子的语境下force 是可数的
[fɔ:s]
n.
一、力; 力量; 力气
She lacks force.
她没有力气.
二、武力; 暴力（不可数）
We had to use force to get into the house.
我们不得不强行进屋.
三、影响力; 效力（不可数）
Decisions of the Congress have force of law.
国会的决议具有法律效力.
四、一群人; 部队; 兵力（只有复数形式）
The navy is one of the armed forces.
海军是三军之一.

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