frig,friger=cold,表示“冷”"
frigid a寒冷的(frig+id)
frigidity n寒冷;(性)冷淡(frigid+ity→冷的状态→寒冷)
refrigerate v使冷,冷冻(re再+friger+ate→再次冷→冷冻)
refrigerator n冰箱(re+friger+ator)
refrigerant a致冷的n.退烧药(re +friger+ant→再冷下来的东西→退烧药)