trench warfare

基本解釋

The trench lines of the Petersburg–Richmond theatre of operations in the final months of that war were the foremost example of trench warfare in the 19th century.
在那場戰(zhàn)爭的最后幾個月里，彼得斯堡-里士滿戰(zhàn)區(qū)的壕溝體系是塹壕戰(zhàn)在19世紀得到應(yīng)用的先例。
Trench warfare is resorted to when the superior firepower of the defense compels the opposing forces to “dig in” so extensively as to sacrifice their mobility in order to gain protection.
當(dāng)防守方的優(yōu)勢火力迫使敵方廣泛“掘壕”，以犧牲機動性來獲得防護力時，就會發(fā)生塹壕戰(zhàn)。
With the advent of trench warfare in 1914, trench coats became an essential piece of the military outfit, with added epaulettes and “D” rings to enable the attachment of military equipment.
隨著1914年壕溝戰(zhàn)的出現(xiàn)，風(fēng)雨衣成了一種必不可少的軍事服裝，上面有附帶的肩章和D型圓環(huán)，可以用來系掛軍事裝備。
www.chinadaily.com.cn

An estimated 80,000 people died in the fighting, many in World War I-style trench warfare.

So, it has gotten a little better, but selling this stuff is trench warfare.
FORBES: Is Salesforce.com A Bubble In The Cloud?
As I understand it, it was old-fashioned trench warfare of a century ago, with a great many deaths.
NPR: Tensions on the Rise in Horn of Africa
The Accenture innovation engine risks a continuation of product innovation and the trench warfare that has characterized the food industry.
FORBES: Connect

a type of warfare in which opposing armies face each other in entrenched positions