详细解释:n. 后援者, 附议者
【法】 附议人, 赞成人, 赞助人
英语解释：
名词 seconder:
someone who endorses a motion or petition as a necessary preliminary to a discussion or vote形容词 second:
coming next after the first in position in space or time or degree or magnitude同义词：second, 2nd, 2d