These are extremely dense masses believed to exist at the center of most galaxies. Their gravitational pull is so strong, they absorb light.
黑洞是被认为存在于大多数星系中心的密度极大的物质，它具有非常强的引力，可以吸收光线。
Gravity exerts a natural pull straight downwards, towards the center of the earth.
地心引力施加一个垂直向下，指向地球中心的自然拉力。
I am in my center, a place of no push and no pull.
我在我的中心里，一个没有将我推进或是拉出来的地方。
Shupletsov was more of an active skier who was able ski with a lot of knee Angle and absorption. Shupletsov appeared to actively pull his feet underneath his center of mass.
Shupletsov是一个较主动的选手，他在滑雪时有更大的膝盖角度和吸收，看上去他能更主动的将膝盖拉回到身体中心的下方。
Some economists say the troubled U. s. housing market is at the center of the country's economic woes, and warn the U. s. will not be able to pull out of a recession until the market recovers.
一些经济学家认为，美国处于困境中的房屋市场是美国经济困难的核心，他们警告说，美国在房屋市场恢复之前将无法走出衰退。
The fork moves the release bearing into the center of the pressureplate. This causes the pressure plate face to pull away from the clutch disc, releasing thedisc from the flywheel.
拨叉带动分离轴承进人压盘中部，从而使压盘和离合器盘分离，离合器盘和发动机飞轮分离。
With gravity happy to pull its center of mass even more off balance. And the more off-balanced it is, the more gravity pulls until…
而重力很乐意使其质心更偏离平衡点，越偏离平衡，重力作用越明显，直到…
With gravity happy to pull its center of mass even more off balance. And the more off-balanced it is, the more gravity pulls until…
而重力很乐意使其质心更偏离平衡点，越偏离平衡，重力作用越明显，直到…
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