The campaign brought honours and promotion to many, but for me it had nothing but misfortune and disaster. I was removed from my brigade and attached to the Berkshires, with whom I served at the fatal battle of Maiwand. There I was struck on the shoulder by a Jezail bullet, which shattered the bone and grazed the subclavian artery. I should have fallen into the hands of the murderous Ghazis had it not been for the devotion and courage shown by Murray, my orderly, who threw me across a packhorse, and succeeded in bringing me safely to the British lines.

这次战役给许多人带来了升迁和荣誉，但是带给我的却只是不幸和灾难。我在被转调到巴克州旅以后，就和这个旅一起参加了迈旺德那场决死的激战。在这次战役中，我的肩部中了一粒捷则尔枪弹，打碎了肩骨，擦伤了锁骨下面的动脉。若不是我那忠勇的勤务兵摩瑞把我抓起来扔到一匹驮马的背上，安全地把我带回英国阵地来，我就要落到那些残忍的嘎吉人的手中了。

A brigade is a unit of the army. A bunch of brigades make up a division, while brigades are divided into battalions and regiments.
The military is nothing if not organized, and one of the forms of organization is the brigade. A brigade is smaller than a division, but larger than a battalion or regiment, several of which make up a brigade. A colonel or brigadier general will command a brigade, which consists of several units, including one at headquarters, one infantry unit, plus support staff. Soldiers in the same brigade will work together closely. Veterans will remember their brigade comrades.

subclavian 
situated beneath the clavicle

Orderly means neat, tidy, and well-organized. An orderly library makes it easy to find the books you want.A thing or place can be orderly, like a desk, refrigerator, or a hospital, and so can a person, particularly if they are very calm and well-behaved. And when it's a noun, orderly means a hospital worker who does many non-medical jobs and generally keeps things neat and tidy — orderly, in other words. The Latin root is ordinem, "arrangement or row," which originally meant "a row of threads in a loom."