perk up的意思是振奋，打起精神，活跃起来。

释义：

1. 打起精神

2. 活跃起来

用法：

1. It can be used to describe the mood of someone who is feeling down and suddenly becomes more cheerful and active.

2. It can also be used to describe someone's appearance or behavior when they are feeling more alert and energetic.

双语翻译的音标：

英 [pɜːk pʊk] 美 [pɜːrk pʊk]

振奋；打起精神；活跃起来。

例句：

1. She perked up when she heard the news.

听到消息后她顿时精神焕发。

2. He perked up when he saw his friends.

看到朋友后他顿时精神起来。

perk up的意思是振奋，打起精神，表现好转，振作起来。

释义：

1. 打起精神

2. 变得活跃

用法：

1. It can be used to describe a person's mood when they are feeling better and more energetic.

2. It can also be used to describe a person's behavior when they are actively trying to improve their situation or gain some positive result.

双语翻译：

1. He perked up when he heard the good news.

听到好消息后他精神振作起来。

2. After a few days of rest, she perked up and started to feel better.

休息几天后，她精神好转，感觉好多了。

常见用法：

1. 描述人的情绪或状态：He perked up after a while and started to enjoy himself.

2. 描述人的行为或表现：She perked up when she realized she had won the lottery.

以上信息仅供参考，建议查阅专业词典以获得准确信息。

perk up的意思、释义、用法及双语翻译，以及列举常见短语如下：

意思：振奋；打起精神；变得活跃；好转

释义：振作起来；变得活跃起来；改善；好转

用法：It can also mean to become more lively or enthusiastic. It can also be used to describe someone's mood improving.

双语翻译：打起精神来，振作起来，变得活跃起来。例句：The children perked up when they saw their favorite cartoon characters.

常见短语：

perk up one's ears：竖起耳朵听。

pick up (one's) spirits/mood/color：振作起来。

perk up one's eyes：睁大眼睛看。

perk up one's face：使脸上露出笑容。

perk up one's step：加快步伐。

其他常见短语有：

perk up and listen：竖起耳朵听。

perk up one's ears at sb/sth：对某人/某事竖起耳朵听。

perk up one's spirits/mood/color with sth：通过某事使某人振作起来。

perk up one's face with a smile：脸上露出笑容。

以上就是关于perk up的意思、用法及常见短语的详细信息，希望能够帮助到您。