having up against the rapids  绞[湍]滩

applying the large units with latest technologies instead of the smallssetting up the large while shutting down the small  上大压小

back up wall  背墙

barge up against  遇到

bark up the wrong tree  攻击错了目标

beat up the quarters of  拜访

Beijing Walk up the Way of Green Development  北京发展踏上绿色之路

blocking up the leakage opening  堵漏; 苏州城建环保学院

bring up against  遭遇

bring up the rear  垫后; 断后; 殿后

brush up against  碰及

build up the right attitude towards sex  建立正确的性观念

build-up the constitutions of people  增强人民体质

Bump up the efficiency  提高效率

bunch up the body  团身

canal wall up  保留耳道壁法

churning up the raw oil  原油搅拌

clean up the cockpit  座舱检查完毕

clearing up the Heat and relieving Blood Stasis  清热化瘀