单词	背景记录
释义	背景记录background jot
随便看	loss of synchronism protection loss of sysnchronism loss of teeth loss of tension loss of time loss of use loss of vacuum loss of validity of verification loss of voice loss of voltage loss-of-voltage protection loss of voyage loss of water level loss of weight loss of weight， weight loss loss of will-power loss of work loss of working hours loss on a capital loss on bad debts loss on drying loss on drying-- drying loss loss on drying--drying loss loss on drying， drying loss loss on heating