spare no every effort.try in best,devote youself to,with a passion, enthusiasm
exert,是发挥的意思,如:exert all one's strength尽全力，exert every effort尽一切力量
exertion,是名词，如：make(use) exertion尽力，with all one's exertion尽最大的努力，combine exertion and rest 劳逸结合，be able to stand the exertion of travelling经得起旅途劳顿
bring \call into play 使活动，使运转，使用，调动
