perk
[pɜ:rk]
vt.& vi.
（使）活跃;
竖起，翘起;
振作;
滤煮;
n.
额外津贴，外快;
例句:
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Psychological twists perk up an otherwise predictable story line.
心理转折使原本老套的故事情节变得生动有趣。
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House prices could perk up during the autumn.
秋季房价可能上涨。
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Perk up a dark kitchen with a coat of paint.
把昏暗的廚房油漆一下使它更亮堂.
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The biggest perk, however, is the cafeteria.
来自NEWYORKER
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Now that perk is to be arbitrarily cut.
来自THETIMES
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So playing at home is meant to be a perk.
来自WSJ