unfeasible

adj.

不能实行的，难实施的；

1. The teachers' demands were economically unfeasible.
   教师们的要求在经济上是不可行的。
2. We would take other measures in case this one is unfeasible.
   这个措施万一不行，我们还可以采取别的办法。
3. Until recently, forest biotechnology seemed unfeasible.
   直到近来，林业生物技术看来还是行不通。

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