单词：evection
An inequality of the moon's motion is its orbit to the
attraction of the sun, by which the equation of the center is
diminished at the syzygies, and increased at the quadratures by about
1� 20'.
The libration of the moon.
evection的用法和样例：
例句
- My friend went to Beijing on evection.一个学生把我的朋友去北京出差了。
- By the way , tomorrow I will have evection for a week.顺便说一下，明天我要出差一个星期！
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