[U] great tiredness, usu resulting from hard work or exercise 疲乏; 疲劳; 疲倦: We were all suffering from fatigue at the end of our journey. 我们到旅程终点时全都累垮了. 
[U] weakness in metals, etc caused by repeated stress （金属材料的）疲劳: The aeroplane wing showed signs of metal fatigue. 机翼显出有金属疲劳的现象. 
[C] non-military duty of soldiers, such as cooking, cleaning, etc 士兵所承担的非军事性工作（如烹饪﹑ 清扫等）: Instead of training the men were put on fatigues/fatigue duty. 那些士兵没有接受训练, 而是派去做杂务. 
fatigues [pl] (US) uniform worn for fatigue duty or when in battle （做杂务或打仗时穿的）制服.> fatigue v [Tn] make (sb) very tired 使（某人）非常疲劳: feeling fatigued 感到疲劳 * fatiguing work 累人的工作.