work up

柯林斯词典

1. PHRASAL VERB If you work yourself up, you make yourself feel very upset or angry about something. 使烦恼; 使发怒
She worked herself up into a bit of a state. 她把自己搞得有点动肝火。
2. →see also worked up
3. PHRASAL VERB If you work up the enthusiasm or courage to do something, you succeed in making yourself feel it. 激发
Your creative talents can also be put to good use, if you can work up the energy. 如果你能激发自己的能量，你的创新才能也能派上好用场。
4. PHRASAL VERB If you work up a sweat or an appetite, you make yourself sweaty or hungry by doing exercise or hard work. 通过锻炼或高强度工作而产生
Even if you are not prepared to work up a sweat three times a week, any activity is better than none. 即使你不准备1周流3次汗，任何活动总比没有要好。