可悲的是这次进攻结果造成重大伤亡.

Tragically, the attempt resulted in <em>heavy</em> <em>casualties</em>.

在这次边界武装冲突中双方都遭到了重大伤亡.

Both sides suffered <em>heavy</em> <em>casualties</em> in the border armed conflict.

双方在那次边界武装冲突中，都遭受重大伤亡。

Boths sides suffered <em>heavy</em> <em>casualties</em> in the border armed conflict.

近年来，煤矿安全事故频发，造成重大伤亡和损失。

In recent years, major accidents have happened frequently in coalmines, and caused great injuries and losses.

新冠疫情已经造成了一个新的重大伤亡，这次是一个政治上的伤亡。

The COVID-19 pandemic has claimed a big new casualty, this time a political one.

一架军机误投了一颗炸弹, 造成重大伤亡.

A warplane accidentally dropped a bomb, killing and wounding thousands of civilians.

不出一个月，一个具备生物学硕士同等学力的人就能够完成制作过程的主要步骤，进而生产出能够造成重大伤亡的剂量。

In less than a month, someone with the equivalent of a masters degree in biology could probably accomplish the necessary steps to produce enough toxin to cause mass casualties.

对重大伤亡紧急情况的持续性深度培训，尤其是在队长以下的级别重视START伤检分类系统的完整工作知识的培训。

Continued in-depth training in mass casualty emergencies with an emphasis on a complete working knowledge of the START Triage system, particularly below Battalion Chief level.