ball
gen /bɔl/
Các nghĩa
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hình cầu
A solid or hollow sphere, or roughly spherical mass.
a ball of spittle; a fecal ball
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cuộn
A quantity of string, thread, etc., wound into a spherical shape.
a ball of wool; a ball of twine
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hình cầu đặc
In 3-dimensional Euclidean space, the volume bounded by a sphere.
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mặt cầu
The set of points in a metric space of any number of dimensions lying within a given distance (the radius) of a given point.
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quả cầu mở
The set of points in a topological space lying within some open set containing a given point.
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đầu đạn chì
A jacketed non-expanding bullet, typically of military origin.
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chỗ phồng tròn
A roundish, protuberant portion of some part of the body.
the ball of the thumb
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ụ ngón chân
The front of the bottom of the foot, just behind the toes.
Dạng khác
- balls plural