他是诚实的，他不会无谓的浪费他的时间和精力。
He is honest; he does not like to waste his time and energy.
很多事情无法预料结果，就不要无谓的浪费自己思考的时间！
I could't never explain what i hear when you say a thing, you say it best!
同样地，Jim提到一旦完成就过时的庞大计划是无谓的浪费，约束规划可以及时帮助我们消除这种浪费。
Likewise, Jim mentioned that the constraint of planning just in time helps eradicate wasteful exercise of making huge plans which are outdated as soon as they are done.
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