lăng trụ đảu lại 
erecting prism [ lăng ] : (1) sheat-fish; (2) mound, hillock, imperial tomb; (3) angle; (4) to insult, offend, invade
[ trụ ] : (1) pillar, pier, post; (2) time; (3) keep, guard; (4) offspring; (5) lustful; (6) military helmet
[ lại ] : (1) again; against, over again, back towards; resume, re-; (2) to come, reach, get to; (3) (indicates something is contrary to expectations)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :