从此以后他就把自己的一生献给了劳动人民的解放事业。 From that time onwards he devoted his life to the liberation of the working people.
少女大约到18岁时开始社交，通常要为她们举办盛大聚会，从此以后她们就被看做是成人了。 In society, girls come out when they reach the age of about eighteen, and usually it is at a big party in their honor; after that they are looked on as adults.