，
;They putaway money to buy a plowing ox to expand their plantings and becomeself-sufficient.
他们还攒钱买了一头耕牛，扩大了种植品种，可以
了。
They putaway money to buy a plowing ox to expand their plantings and becomeself-sufficient.
他们还攒钱买了一头耕牛，扩大了种植品种，可以了。
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