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The galactic center is a unique natural experiment in strong gravity.
故事的力量在于它能够将我们带到另一个地方和时间。
The beauty of mathematics lies in its simplicity and depth.
Stepchildren are at greater risk because evolutionary pressures have shaped parental psychology to favor genetic offspring.
【释义】:当面赞誉他人的人往往不够忠诚,只注重外表修饰的人往往缺乏真情实意。