Zhè bù diànyǐng miáoxiě le yījiārén de bēihuān-líhé.
This movie depicts the ups and downs of a family.
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This idiom comes from 苏轼's famous Mid-Autumn Festival poem: 人有悲欢离合，月有阴晴圆缺 (People have sorrows and joys, partings and reunions; the moon waxes and wanes).
