The reaction to this radiation is greater on the afternoon side than on the morning side and there is thus a small force pushing on the afternoon side that gradually distorts the asteroid's orbit.
下午的热辐射反作用力就大于上午,因此,始终有那么点力作用于下午一侧,逐渐地就使小行星偏离轨道。
Normally, one side of the brain controls movement on the opposite side of the body. For example, the left side of the brain controls movement on the right side of the body.
通常,一侧的大脑控制另一侧身体的移动,例如左脑控制右侧身体的移动。
Sometimes, the side facing the Earth is the day side, and other times it is the night side: this is why we observe moon phases.
有时,面对着地球的是“白天半球”,其它时间则是“夜晚半球”:这就是我们为什么只能阶段性地观察月球。
A good place for watching unusual-looking people is Venice, an area on the west side of Los Angeles.
VOA: special.2010.01.03
Look in the packet at this letter near the top of the right-hand side of the page.
看一下这封信的,右手边最上面。
What's hanging off of the side of this long molecule that's formed by polymerizing nucleotides are - is this base unit.
在这条由多聚核苷酸,构成的长链分子,一侧悬挂着碱基单位
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