The idea that the human personality is a blank SLATE, to be written upon only by experience, prevailed for most of the second half of the 20th century.

20世纪下半叶，人们普遍认为性格是个白板只是由人生经历来书写。

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It involved a series of black letters presented in the centre of a white screen. Each letter was shown for half a second and followed by a blank screen for two seconds before the next letter appeared.

一系列的黑色字母会出现在屏幕中央，每个字母呈现半秒，下个字母出现前持续两秒的空屏，要求参与者尽可能快速而准确地指出每个字母是否与前两个字母出现的字母相匹配。

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As I mulled over my missing more than half of each lecture, I suddenly hit upon an idea: Why not leave every other line on my note paper blank?

想着自己有半堂课的笔记记不下来，我突然灵机一动，干嘛不在笔记本上隔行留空呢？

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First he pushed away Scholes' header from point-blank range on the half-hour mark as England finally managed to push forward.

BBC: News | Football | England beat Tunisia

That was not Southend's only chance of the half and it took a superb point-blank save from Petr Cech to keep out Alex Revell's header on 40 minutes to keep the scores level.

BBC: Southend 1-4 Chelsea

Friedel made amends for his error as he tipped over a chip from Deco and then denied Drogba at point-blank range, then seven minutes into the second half Dunne's fellow center-back James Collins put Villa ahead from another Young corner as he was left unmarked at the far post.

CNN: United back on top as Chelsea crash at Villa