变得更活跃或更开心：指变得更有活力或更开心，或使（某人）变得更活跃或更开心。
使（某物）更清新或更吸引人
（动物的耳朵）迅速竖起：指动物的耳朵迅速竖起，警觉地听着。
（人的耳朵）突然听到感兴趣的事物：指当听到自己的名字被提到时，人的耳朵突然听到感兴趣的事物。
perk up // [ perking perked perks ]
动词词组 If something perks you up or if you perk up, you become cheerful and lively, after feeling tired, bored, or depressed. 使振作; 振作
He perks up and jokes with them.
他振作起来，和他们开着玩笑。
动词词组 If you perk something up, you make it more interesting. 使更有趣
To make the bland taste more interesting, the locals began perking it up with local produce.
为了使平淡的口味更有味道，当地人开始加些土特产来调味。
动词词组 If sales, prices, or economies perk up, or if something perks them up, they begin to increase or improve. 增长
House prices could perk up during the fall.
秋季房价可能会上涨。
... Chill: 冷却 Simmer: 小火慢煮；心中充满 Perk up: 活跃起来；振作精神 ...
... click 发出卡嗒声，似乎上了发条或按了开关 perk up 活跃起来 trash bin 垃圾箱 ...
不过我肯定，我很快便又振作起来（perk up），因为中国新年，或说农历（Lunar）新年，转眼便会到。
不管怎样请送这些文件给我们 » No matter how please deliver these documents to give us 重新振作起来 » Perk up 养颜红枣糕 » Beauty jujube cake ..
昂首翘尾；活跃起来；振作精神
House prices could perk up during the fall.
秋季房价可能会上涨。
By consolidating the hawks, the new alignment may also unify and perk up the doves in Israel's aviary.
通过巩固鹰派，新的结盟也可能团结和振奋以色列的鸽派。
Can anything perk up Europe?
欧洲能重振雄风吗？
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
心理学导论课程节选 : 耶鲁公开课
He has estimated that government revenues will perk up by more than 20% in 2013-14.
The economy might yet perk up in time to produce better figures before September 22nd.
As the night wanes, the kibitzers close in and the players perk up.