1）build up (to sth)加大,加强,增多
Eg：The music builds up to a rousing climax.音乐逐渐达到了令人振奋的高潮.
2）build up to sth/build yourself up to sth为……作准备
Eg：Build yourself up to peak performance on the day of the exam.好好准备在考试那天发挥出最高水平.
3）build sb/sth up吹捧,鼓吹
Eg：The play was built up to be a masterpiece but I found it very disappointing.那部戏被捧为杰作,可我却大失所望.
4）build sb/yourself……up增强……的体质
Eg：You need more protein to build you up.你得多次蛋白质以增强体质.
5）build sth up建立,开发
Eg：These finds help us build up a picture of life in the Middle Ages.这些发现有助于构建中世纪的生活画面.