1·They waste efficiency when needless procedures are performed, or when essential procedures are precluded by interruptions in the supply chain.
采用不必要的医疗程序或因供应链受阻而不能采用基本程序则导致效益浪费。
2·I don’t love Christmas shopping, or the overconsumption, frenzied malls, consumer debt, environmental waste, wasted time wrapping, and over-accumulation of needless stuff that goes with it.
但是，我反感圣诞节购物，或者说过度消费，我还讨厌疯狂的购物中心，过度消费欠下的债务，讨厌环境资源的浪费，费时费力的包装，还有越积越多的没用的东西。
3·While many documents may be exchanged from student to teacher and visa versa, each party can print said documents as they see necessary, eliminating needless paper waste and copying.
虽然很多文件可能交换学生到教师和签证反之亦然，每一方当事人可以打印文件，说他们看到有必要，消除不必要的纸张浪费和复制。
4·Don't you think it is a waste of time to give him so much needless are?
你不觉得给他这么多不必要的关心是浪费时间吗?。