Your whole life will perk up once you get to the last part of May.

5月的末期，你整个生活将活跃起来。

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When you say "I'll tell you a story about..." your audience will perk up.

当你说“我要给你讲一个关于……的故事”时你的听众立刻打起了精神。

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Consider installing a new sink-it's a relatively inexpensive renovation that will perk up your entire kitchen.

考虑一下换一个新的洗涤槽，这是一个相对花费不高却能让你整个厨房活跃起来的改造。

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If they all look the same to the baby, the baby will just continue to tune out, but if the red looks different the baby will perk up.

如果对于婴儿来说,两种颜色没有差别,他就仍然不予理会,但如果他觉得红色与绿色不同,那他就会重新活跃起来

耶鲁公开课 - 心理学导论课程节选

He has estimated that government revenues will perk up by more than 20% in 2013-14.

BBC: India's budget: A deft balancing act

But there is good reason to hope that by midyear the economy will perk up as destocking comes to an end and the government's fiscal stimulus kicks in.

ECONOMIST: China's flagging economy: Strong as an ox? | The

This will perk you up for a few hours without turning you into a night owl!

FORBES: 4 Ways To Sleep Better And Be Thinner