心不在焉（或“出神”、“开小差”）可以保护你免受直接伤害，有助于你达成长期目标。有时做白日梦是想非所想，但是有时候它却蕴含创造力，有助于你解决问题。
Sometimes daydreaming is counterproductive, but sometimes it fosters creativity and helps you solve problems.
布兰克教授太心不在焉，你会以为他脑子空空的，但是你去听了他的讲座之后你就知道为什么大家都说他是他那一领域的天才。
Professor Blank is so absent-minded you think he doesn't have both oars in the water. But when you go to his class and listen to his lecture, you know why everybody says he's a genius in his field.
布兰克教授太心不在焉，你会以为他脑子空空的，但是你去听了他的讲座之后你就知道为什么大家都说他是他那一领域的天才。
Professor Blank is so absent-minded you think he doesn't have both oars in the water. But when you go to his class and listen to his lecture, you know why everybody says he's a genius in his field.
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