At their kindest, they may gently enquire why John or Mary isn't doing better, whether he or she is trying as hard as he or she should, and so on.

最善意的情况下，他们可能会温和地询问为什么约翰或玛丽没有做得更好，他或她是否拼尽全力，等等。

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In one study, researchers tested whether students remembered lists of words better if they heard them, saw them or both.

在一项研究中，研究人员测试了学生在听到、看到或同时听到和看到单词时，是否能更好地记住单词表。

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People who work toward such excellence-whether they are driving a truck, or running a store — make the world better just by being the kind of people they are.

无论是卡车司机还是商店老板，那些努力追求卓越的人因为坚守自己的本性让整个世界变得更好。

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Personally, I would ask the people who have made it big (or better) in life whether they really, truly did it alone.

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The problem for patients: Because these treatments are so new, it's hard to know whether they work better than traditional methods, or even work at all.

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To determine whether the surgery was truly effective or if the patients felt better simply because they believed in the treatment, the doctors told the patients that some of the battery packs powering the electrodes inside their brains would be turned off, while others would be left on, to measure any placebo effect.

CNN: Treating depression with electrodes inside the brain