adj.浪費(fèi)的；揮霍的
His weakness is that he is very wasteful. 他的弱點(diǎn)是愛(ài)浪費(fèi)。
We must avoid wasteful duplication of effort. 我們必須避免無(wú)謂的重復(fù)勞動(dòng)。
It is wasteful to throw way glass, paper and metal. 把玻璃，紙張以及金屬扔掉是很浪費(fèi)的。
adj.浪費(fèi)的；揮霍的
adv.揮霍地；不經(jīng)濟(jì)地
