当今世界，睡眠专家经常说，为了获得更好的睡眠，美国人应该在睡觉前关掉智能手机或平板电脑。

In today's world, sleep experts often say that for a better night's rest, Americans should turn off their smart phones or iPads before sleeping.

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答：是，相当经常，小天才在数学，音乐，艺术或是象棋等领域里有过人之处，孩子们在他们的学习领域里掌握了规律并能在早期成为该领域的专家或能手。

A: Yes, but more often, prodigies excel in fields with formal rules, like math, music, art or chess. The children master the rules and become early experts in the field.

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许多智能手机专家和评论家声称黑莓没有提供足够的不同种类的手机。

Many smartphone gurus and reviewers make the claim that BlackBerry does not produce enough differing variations of their mobile phones.

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