4周搞定2000+托福核心词
disequilibrium = dis(不,非) + equi(相等) + libr(秤) + ium(名词) = 不均衡
equilibration = equi(相等) + libr(秤) + ation(表名词) = 使秤相等→平衡
昼夜平分→春分，秋分
equinox
常考释义
Day and night were divided into the same number of parts, so that except at the equinoxes, days and night hours were unequal; and then of course the length of these hours varied with the seasons.
白天和黑夜被分为均等的部分，所以除去昼夜平分点，白天和黑夜时间是不均等的；当然因此，这些时间的长度也随着季节变化。
来源于：阅读OFFICIAL30 P3n. 春分；秋分
Why was the rising Sun due east one day after the equinox?
为什么是春分后一天太阳正好从东方升起？
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