由于天气炎热且没有大型机械，救援工作进行得十分艰难。

Due to the hot weather and lack of large machinery, the rescue work was very difficult.

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因为土地规模小，中国的农民一般都没有大型机械，他们经常用铁锨、犁、锄头。

Because of their small fields, the farmers in china usually do not have big machines. The tools they use are often shovels, a hand-pushed plough, hook and hoe.

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