Up to two thirds of 14 to 16 year olds admit to buying alcohol illegally.

14至16岁的少年中有多达2/3的少年承认非法买过酒。

《柯林斯英汉双解大词典》

Telling such stories to two year olds does not seem to produce long-lasting verbalizable memories.

给两岁的孩子讲这些故事似乎并不能使他们形成可以用语言表达的持久性记忆。

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In the first study, three-year-olds watch two videos shown side by side.

在第一项研究中，三岁的孩子们观看了并排播放的两段视频。

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Two-year-olds find this difficult.

两岁大的儿童会觉得这个任务很难

耶鲁公开课 - 心理学导论课程节选

The government has promised that there will be free places available in pre-school classes for all four-year-olds and two thirds of three-year-olds by 2002.

BBC: Chasing pre-school targets

The survey, of 1, 330 diabetics, found over half said pain was a issue when testing, particularly for 21-35-year-olds, two-thirds of whom said it was a problem.

BBC: Pain 'prevents diabetics checking health'

Lawrence Lee, the former solicitor for Jon Venables, one of two 10-year-olds who murdered two-year-old James Bulger in 1993, said the statistics were "very worrying".

BBC: Under 10s arrested in Avon and Somerset for sex crimes