Constant effort

Constant

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Be keen to do sth

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Match

Poor match

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frequent

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Acquire

Revenue

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Convince

Convincing

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Yet later on, the more affluent children end up in college and on the way to the middle class, while working-class children tend to struggle.

但后来, 更富裕的孩子最终上了大学，走上了中产阶级的道路，而工薪阶层的孩子往往很挣扎。

Interim=temporary;