paradeone'sknowledge卖弄学问A:Markisparadinghisknowledgeagain.A:马克又在卖弄学问了。B:Yeah!He'sverygoodatshowingoffhisknowledge.B:是啊,他总是善于炫耀。A:Awell-learnedpersonneverdoesthat.A:真正有......