1
perk up
不及物，表示自己振作起来。
She perked up after a good night's sleep.
她好好睡了一夜后精神振作起来。
冒出；探出；出现
先理解核心含义，再看它在真实句子里的用法。
冒出；探出；出现
To appear from below or behind something; to pop up or poke out.
She perked up after a good night's sleep.
她好好睡了一夜后精神振作起来。
To make trim or smart; to straighten up; to erect; to make a jaunty or saucy display of.
To appear from below or behind something, emerge, pop up, poke out.
perk
Base
原形
perks
3rd person
第三人称单数
perking
-ing
现在分词
perked
Past
过去式
perked
Past participle
过去分词
She perks up when she hears good news.
她听到好消息时会振作起来。
He perked up after a cup of coffee.
喝了一杯咖啡后，他振作起来了。
They are perking up the room with decorations.
他们正在用装饰品让房间变得更有活力。
振作
After a cup of coffee, she began to perk up.
喝了一杯咖啡后，她开始振作起来。
The good news perked him up immediately.
好消息立刻让他振奋起来。
The team perked up after the coach's inspiring speech.
在教练鼓舞人心的演讲后，团队振作了起来。
不及物，表示自己振作起来。
She perked up after a good night's sleep.
她好好睡了一夜后精神振作起来。
及物，表示使某人振作。
A cup of coffee really perks me up in the morning.
早上喝杯咖啡确实让我打起精神。
竖起耳朵，表示警觉或感兴趣。
The dog perked up its ears at the sound of footsteps.
狗听到脚步声竖起了耳朵。
Not this
He perked after hearing the news.
Use this
He perked up after hearing the news.
当 perk 作‘振作’解时，是不及物动词，必须与 up 搭配构成短语动词 perk up，表示‘振作起来’。直接使用 perk 单独表达此意是错误的。
Not this
She perked him with a joke.
Use this
She perked him up with a joke.
Perk 不能直接带宾语表示‘使某人振作’；需要与 up 构成及物短语动词 perk up，才能接宾语。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
振作起来；活跃起来
She perked up after a cup of coffee.
喝了一杯咖啡后，她打起了精神。
竖起耳朵（注意听）
The dog perked up its ears at the sound of the bell.
狗听到铃声竖起了耳朵。
使经济复苏；促进经济
The tax cut perked up the economy.
减税促进了经济复苏。
让房间焕然一新；使房间更漂亮
Some colorful cushions perked up the living room.
几个彩色靠垫让客厅焕然一新。
振作起来；使更有生气
She perked up when she heard the good news.
她听到好消息时振作了起来。
竖起耳朵（仔细听）
The dog perked up its ears at the sound.
狗听到声音竖起了耳朵。
Use perk naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象小狗竖起耳朵（perked up）从草丛里探出头来，perk 就有“探出、使精神”的意思。
语域：mixed 常见场景：literary/descriptive writing、informal conversation 该动词单独使用的场合不多，通常见于文学或描述性文字，表示“冒出、探出”；口语中多使用短语动词 perk up，表示“振作、活跃起来”。日常表达时可优先考虑 perk up。
Genuine rhymes with 'perk' all end in /əːk/: work, lurk, jerk, smirk, shirk, irk. 'jerk' also shares the exact spelling '-erk' with 'perk'. Beware lookalikes: 'park' (/pɑːk/), 'peck' (/pek/), and 'pick' (/pɪk/) look similar but are pronounced with different vowels.
Dictionary facts from ECDICT, WIKTIONARY.