When sweat is left on the surface of the body, it is acted upon by bacteria, producing an odour.汗液留在身体表面后，便会在细菌的作用下，产生异味。These special fabrics wick moisture from athletes' skin to keep them comfortable.这些特别的材料吸去运动员皮肤上的汗液，保持舒适。The soothing, cooling effect is caused by the evaporation of the sweat on the skin.皮肤表面汗液的蒸发给人带来镇静而凉爽的感觉。