Para.5 1.As a result,many people avoid the very endeavors that are the source of true happiness. source 事物的来源，问题的起因，信息的来源，河流的源头 e.g. source of trouble source of income source of strength source of the news source of the river 近义词> origin 起源，事物发展的开端，出身，血统 e.g. origin of the language origin of the disaster humble origin1. As a result, many people avoid the very endeavors that are the source of true happiness. Para. 5 source 事物的来源，问题的起因，信息的来源，河流的源头 e.g. source of trouble source of income source of strength source of the news source of the river 近义词 origin 起源，事物发展的开端，出身，血统 e.g. origin of the language origin of the disaster humble origin