Previously, it had been impracticable to try to measure lightning even if a mega flash occurred.

以前，即使发生超级闪电，也无法进行测量。

I was soon convinced, how impracticable was the attempt.

我很快就确信， 这种尝试是多么不切实际。

I racked my brain for a solution of this impracticable problem.

我绞尽脑汁想办法解决这个不切实际的问题。

" All the theories of science demonstrate such a feat to be impracticable."

“所有的科学理论都证明这样的壮举是不切实际的。”

It angered him to perceive that Rosamond's mind was wandering over impracticable wishes instead of facing possible efforts.

看到罗莎蒙德的心思徘徊在不切实际的愿望上， 而不是面对可能的努力， 这让他很生气。

But the rain water used to make furrows in the walk every spring, caused ditches to appear, and rendered it generally impracticable.

但每年春天， 雨水都会在人行道上形成沟渠， 导致出现沟渠， 因此通常无法行进。

Saying which he went out in disdain; and the landlord, having no one to reply upon, found it impracticable to pursue the subject.

说完他不屑地走了出去；房东没有人可以回答，觉得追究这个话题不切实际。

He waited only for an opportunity of repeating his former enterprize; But to procure that opportunity by the same means was now impracticable.

他只是在等待机会重蹈覆辙。 但是现在用同样的方法获得那个机会是不切实际的。

Even amid poverty, I could do so much better; keeping before my eyes some definite, some not unattainable, good; sternly dismissing the impracticable, the wasteful.

即使在贫困中， 我也可以做得更好； 在我眼前保留一些确定的， 一些并非无法实现的好东西； 严厉地驳回不切实际的， 浪费的。

This statute, therefore, rendered it almost impracticable for a poor man to gain a new settlement in the old way, by forty days inhabitancy.

因此，这项法令使得一个穷人几乎不可能以旧的方式通过居住四十天来获得新的定居点。