終身大事

major turning point of lifelong import (esp. marriage)

end / finish

lifelong / all one's life / marriage

body / life / oneself / personally / one's morality and conduct / the main part of a structure or body / pregnant / classifier for sets of clothes: suit, twinset / Kangxi radical 158

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

major event / major political event (war or change of regime) / major social event (wedding or funeral) / (do sth) in a big way / CL:件[jian4],樁|桩[zhuang1]

matter / thing / item / work / affair / CL:件[jian4],樁|桩[zhuang1],回[hui2]