他们遭受了惨重的伤亡。

They have taken heavy casualties.

《柯林斯英汉双解大词典》

那意外事件造成了惨重的伤亡。

There were heavy casualties in the accident...

youdao

权力分享在实际中如何操作仍有待观察，特别是在多年来双方间的冲突已经造成了惨重的伤亡之后。

It remains to be seen how the sharing of power will work in practice, especially after all the bad blood that has been spilt between the pair over many years.

youdao

I have to believe that the bulk of the killing took place on the flight and so that's why that works out.

但我相信,惨重的伤亡会在逃跑时出现,这就是为什么会算出那么惨重的伤亡数字

耶鲁公开课 - 古希腊历史简介课程节选

If you multiply her, then you want to have as much depth to fill in behind to close that hole as you can, so that that would make your phalanx more sturdy, because you could take more casualties without breaking, that seems reasonable to me.

如果再多一些,你就需要在后面增加足够的排数,尽可能地填补缺口,这会使你的方阵固若金汤,即使伤亡惨重也不影响阵容的坚固,这在我看来是合理的

耶鲁公开课 - 古希腊历史简介课程节选

He eventually switched; his New York this happened in many regiments in the Civil War it took so many casualties it ceased to exist and he switched to a Connecticut regiment and he served that Connecticut regiment through the summer of 1864.

他最终换了军队,内战期这很平常,他所在的纽约军队伤亡惨重,全军覆灭,他来到康乃狄格军队,他一直在此服役,度过了1865年夏

耶鲁公开课 - 美国内战与重建课程节选