adj.浪費(fèi)的；揮霍的

His weakness is that he is very wasteful. 他的弱點(diǎn)是愛浪費(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。

The energy shortage of the world results partly from wasteful use by the industrialized countries. 世界能源的短缺，部分是由于工業(yè)化國(guó)家揮霍能源而引起的。