me.nar.chen.(名词)The first menstrual period, usually occurring during puberty.月经初期:第一次月经期,通常发生于青春期来源:men(o)- men(o)-Greek arkhô [beginning] from arkhein [to begin] 希腊语 arkhô [开端] 源自 arkhein [开始] 【引伸】menar.chealadj.(形容词)