1、 The weather made it unfeasible to be outdoors.
天气使人出不了门。
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2、 Opening up new farmland was a possibility, but most of what was suitable had already been exploited and further reclamation was technically unfeasible.
开辟新农田是可能的，但大部分适宜的土地已经开发，进一步开垦在技术上是不可行的。
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