曾参杀人 zeng shen has killed a person.; a repeated rumour is liable to be taken as truth.; rumours are dreadful
是否 whether or not; whether; if 是否符合实际 whether or not it corresponds to reality
他不知道是否要去参加比赛 he doesn't know _____ ______ go to the match
参加 1.(加入) join; attend; take part in; participate in; go in for; partake in [of] sth. with sb.; have hand in; enter into 参加讨论 participate in the discussion; 参加会议 attend a meeting; 参加党 join the party; 积极参加文娱活动 take an active part in recreational activities; 我们班上大多数学生参加各项科学活动。 most students in our class go in for scientific activities.2.(提出意见) give (advice, suggestion, etc.) 这件事你也来参加点意见吧。 come and give us your view on the matter, won't you?; 参加管理[经营] management participation; 参加者 attendance