短语词组短語Coving letters 求職附信coving radius 覆蓋半逕coving spaces 覆曡空間back coving baffle 後罩板coving defend method 覆蓋防護方法metallurgic coving flux 冶金用集渣覆蓋劑coving of the complete graph 圖覆蓋remittances coving trust fund losses 撥補信托資金虧損 返回 coving