;
，
They putaway money to buy a plowing ox to expand their plantings and becomeself-sufficient.
他们还
了一头耕牛，扩大了种植品种，可以自给自足了。
They putaway money to buy a plowing ox to expand their plantings and becomeself-sufficient.
他们还了一头耕牛，扩大了种植品种，可以自给自足了。
声明：以上例
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