油滑的, 不可靠的

as slippery as an eel skin an eel by the tail slippery eel EEL as straight as an arrow as dumb as an oyster as drunk as an owl as grave as an awl as swift as an arrow as deaf as an adder as blind as an owl as stupid as an owl act as an assessor accounting as an information system as full of...as an egg is of meat an organic material used as fertilizer not to be taken as an evidence pulse as an indicator of disease