基本解释n.参加者;旁听者;替人看家并照顾小孩的人同根派生 sitter-in相关词英汉例句用作名词 (n.)She was a participant in these campaigns.她是这些运动的参加者。Please count me in on this project.请把我也算作这项计划的参加者。sitter-in更多例句