adj.浪费的；挥霍的
His weakness is that he is very wasteful. 他的弱点是爱浪费。
We must avoid wasteful duplication of effort. 我们必须避免无谓的重复劳动。
It is wasteful to throw way glass, paper and metal. 把玻璃，纸张以及金属扔掉是很浪费的。
The energy shortage of the world results partly from wasteful use by the industrialized countries. 世界能源的短缺，部分是由于工业化国家挥霍能源而引起的。
