These businesses are unable to operate effectively without wasting materials, time or energy.

由于生产率低下，生产商不得不浪费一些材料、时间以及能源。

He thought she was being deliberately cold-blooded about it; the 'material time' was when Leslie Searle had presumably lost his life, and he did not think that she was forgetting that fact.

他认为她是故意冷血的。 “物质时间” 是莱斯利·塞尔可能失去生命的时候， 他认为她没有忘记这个事实。