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1·The migrants themselves hesitate to say they'll never return to the farm; without job security, their small plots of land are their only insurance.

流动人口们自己也不是很确定是否会回到农田中；没有了工作的保证，他们的土地就是他们唯一的保险。

2·There was a good reason why men would risk everything to journey to a distant land from which they might never return.

有一个很好的理由会不惜一切去遥远的地方，他们可能永远不会回来。