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。

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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。

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I am maintaining my airspeed and looking outside to modify my pull and my turn to be able to arrive back at show center at roughly the same point where I started.

我要保持我的空速，看着舱外修正我的拉杆与转向动作使飞机能够在接近动作开始时的相同位置上回到展览中心上空。

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With a VESA mount, you can hang it in your bedroom and use Windows Media Center to pull in content from your main PC or even plug in a digital cable tuner and use it as a stand-alone entertainment system.

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Ms. JOSIE McKINLEY (Poseidon Resources): The water goes in through the unit and it will then pull the drinking water through the center.

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Pull out the trays for the center console.

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