他对需要些什么心中有数。
你已心中有数：英雄出自素食者。
课前指导查阅资料，做到心中有数；
虽然约翰对一切都心中有数，但他从不拿癌症话题开玩笑。
Even though John always had a ready answer, he never joked about cancer apparently.
你需要随时对每项支出余额心中有数，这能防止你过度消费。
目前不要削减赤字，但做到心中有数，最终目标一定能实现。
Don't cut the deficit now-but explain how, eventually, you will.
对自己的阅读速度心中有数应该是快速阅读带给你最重要的东西。
More than anything else, speed reading should give you an awareness of your speed.
有关于文章中研究对象的关键词，可能你在事先已做到心中有数了。
You're probably already aware of the key words in the subject you're studying.
项目经理在进行估计的过程中，很可能对人员能力早已心中有数。
Project manager during the estimation process, are likely to already know what human capacity.
为了能报出合适的价格，你预先就得对成本和预期利润心中有数。
In order to quote properly, you need to know its cost and the target profit well in advance.
有关于文章中研究对象的关键词，可能你在事先已做到心中有数了。
You're probably already aware of the key words in the subject you're ing.
“好，我什么也不再讲了！”老国王说，“我只须在旁看看，我自己心中有数！”
"I shall not say anything more, " said the old King. "I only go on quietly, and always think the best. "
“好，我什么也不再讲了！”老国王说，“我只须在旁看看，我自己心中有数！”
"I shall not say anything more, " said the old King. "I only go on quietly, and always think the best. "
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