The components of solid propellants are of necessity highly reactive and essentially incompatible.

It is best to prepare for the days of necessity.

未雨绸缪,才能防患于未然.

We would make a virtue of necessity.

我们要把迫不得已而为的事装成出于好心而为.

Being short of money, I made a virtue of necessity and gave up smoking.

我因缺钱, 倒也乐得把烟戒了.

You are a beauty horizontalas the flower still artistic talent overflow also of no account.

你是貌美如花还是才华横溢也不重要了.

You cannot whistle me down the wind as though I were of no account.

你不能抛弃我,好像我是一文不值似的.

Are all those of no account?

难道那一切都是无关紧要的 吗 ?

This is a matter of no account.

这是一件无关紧要的事.

Emotional matters were of no account to them during the war.

在战争期间,感情问题对他们其实不重要.

Emotional matters were of no account to during the war.

在战争其间,感情问题对他们并不重要.

Don't worry about that mistake; it's of no account.

不要为过失担扰, 那无关紧要.

In your friends'eyes you have already stepped beyond the pale , are of no account.

在朋友的心目中,你早已沦为不值得计较的妄人.

There are few sorrows, however poignant, in which a good income is of no avail.

伤心事, 不管多么刻骨铭心, 在有了一份好收入之后不会被冲淡的例子是很少的.

That would be of no avail.

这样恐怕无补于事.

Empty talk is of no avail.

空言无济于事.

Medicine is of no avail.

医药无效.

The people who stood on the avenue tried to extinguish the fire, but of no avail.

站在林荫道上的人们想熄灭大火, 但不起作用.

With of water Qujiu a car Zhao Lehuo of fuelwood, the metaphor of no avail.

用一杯水去救一车着了火的柴草, 比喻无济于事.

If one word does not succeed, ten thousand are of no avail.

一言不胜, 满盘皆输.

This has been of no avail.

这话并未发生效果.

All this was of no avail.

但是这些话等于白说.