impracticable

adj.

不能实行的，难对付的；不切实际；疏阔；架空

1. It was impracticable to think that we could build the house in one week.
   以为我们用一周的时间就能把房子盖好，这种想法是不切实际的。
2. The plan is impracticable.
   这个计划是不可行的。
3. It was a thoroughly impracticable plan.
   那是个根本无法实行的计划。

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