undergo: to experience sth that is unpleasant or sth that involves a change
undergo a revival/ an excessive schoolwork / an operation
eligible: reasonable,suitable—having the necessary qualities or satisfying the necessary conditions
an eligible match, be eligible for sth
court: to try to get sth, especially attention or support from other people
court public attention/approval
rigorous: strict
optimize: to make sth as good as it can be
optimizie our use of the existing techonology/ a plan
restruct one's life
legacy: old but still used by some people
aggregate: to put different items together to form a group or a total 积聚 积累
aggregate data/votes
pledge to do =make a serious or formal promise to do sth
weigh sth/sb down 施加压力；使焦虑沮丧
