早在20世纪初就有学者(Leopold 1939-1949)详尽地描述双语儿童的语言习得,但是之前的研究(Volterra and Taeschner)〔5〕提出的是单一系统假说(Unitary System Hypothesis),即双语儿童习得初期心智中只存在一个系统。
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尽管之前的研究表明,猿类和猴子可以从其他动物的叫声中理解复杂的信息,但这些动物似乎并没有故意使用它们的声音来交流信息。
Although previous research has shown that apes and monkeys can understand complex information from another animal's call, the animals do not appear to use their voices intentionally to communicate messages.
但是与之前的研究相比,她发现这项研究的破解速度令人兴奋。
But compared with previous studies, she finds the speed of breaking down in this one exciting.
这项新研究确实比之前的研究更进一步,它表明屏幕使用时间仍应被视为年轻人成长的潜在障碍。
The new work does go further than previous research and suggests that screen time should still be considered a potential barrier to young people's flourishing.
And he has a theory about early life and perfectly appropriate as far as one can tell of what pre-human form he studied.
他有一个有关早期生命的理论,一般人都会觉得很正常,他研究人类之前的生命形式没有什么不合适。
Well, as I said, I'm a graduate fellow in one of the undergraduate colleges,
正如我之前所说,我是在本科生学院的一名研究员。
Most of us think we have so far to go before we can answer questions like Huxley's question.
多数心理学家与哲学家都认为在能够回答,诸如赫胥黎提出的这类问题之前,还需要做大量的研究才行
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