到去年年底，那位求知若渴的年轻教师已经出国深造两年了。

By the end of last year, the young teacher who was thirsty for knowledge had been abroad for further study for two years.

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这个村子曾经很穷。到去年年底，这个村子已经摆脱了贫困。

The village used to be poor. By the end of lat year, the village had thrown off poverty.

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到去年年底，这一比例已经升至69%。

By the end of last year, the share had risen to 69%.

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