smart alec

(infml usu derog 口, 通常作贬义) person who acts as if he has great ability and knowledge; know-all 自作聪明的人; 万事通.

slyly, slyness, smack, smacker, smacking, small, small arms, small change, small talk, small-minded, small-mindedness, small-scale, small-sized, small-time, smallholder, `smallholding, smallish, smallness, smallpox, smarmy, smart, smarten, smartly, smartness, smash, smash-and-grab, smashed, smasher, smashing, smattering, smear, smeary, smell, smell about, smell of, smell out, smelliness, smelling-salts, smelly, smelt, smidgen (also smidgin),