In fact,one of the best definitions of a sense of humour is “the ability to see the nonserious element in a situation.” 话中“nonserious element” 意思为：细微的环节,非正式要素
nonserious 原义为非正规的,引申为隐含的,不明显的.
element n.元素；成分；要素；原理；自然环境