1. The plan they proposed was met with impracticability due to various logistical constraints.
由于各种后勤限制，他们提出的计划遭遇到了不切实际的情况。

2. The CEO recognized the impracticability of expanding the company's operations in the current market conditions.
首席执行官意识到在当前的市场条件下扩大公司的业务的不可行性。