require:[often passive](rather formal)to make sb. do or have sth,especially because it is necessary according to a law or set of rules or standard指要求做（某事），达到（某水平），尤指根据法律或规定 request（正式或礼貌的）要求，请求 demand :to ask for sth. very firmly；to...
近义词辨析英语
require:[often passive](rather formal)to make sb. do or have sth,especially because it is necessary according to a law or set of rules or standard指要求做（某事），达到（某水平），尤指根据法律或规定
request（正式或礼貌的）要求，请求
demand :to ask for sth. very firmly；to say very firmly that sb. should have or do sth.指强烈要求，坚决要2011-09-28
需要请求需求;2011-09-28
