wasteful l浪费的;挥霍的;耗费的;消费的
Wasteful services多余的服务
wasteful production亏本的生产
Clumsy Wasteful粗气
wasteful respiration耗费性呼吸
Wasteful over挥霍的过度
prodigal wasteful浪费的
ADJ（形容词） Action that is wasteful uses too much of something valuable such as time, money, or energy. 浪费的
This kind of training is ineffective, and wasteful of scarce resources.
这种训练没有效果，浪费了稀有资源。