动词短语
中文翻译：Unknown
同义词：
['recover', 'straighten', 'restore']
例句：
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1. After a long day at work, I decided to pull up my slacks and start working on the project.
在长时间的工作后，我决定振作起来，开始着手这个项目。
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2. The teacher encouraged the students to pull up their slacks and improve their grades.
老师鼓励学生们振作起来，提高成绩。
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3. She pulled up her slacks and started running again after she fell down.
她站起来后，又开始跑步。