[抛砖引玉 / 拋磚引玉, pāo zhuān yǐn yùㄆㄠ ㄓㄨㄢ ㄧㄣˇ ㄩˋ] lit. to throw a brick to attract jade (成语 saw); fig. I offer a humble remark, please give us your valued opinion (e.g. commonplace remarks as a foreword to a distinguished speech)#45301
[じょ, jo] (n) (1) order; ordering; (2) beginning; start; (3) (See 序詞) foreword; preface; introduction; (4) (See 序破急) (in gagaku or noh) opening of a song#9347
[くちがき, kuchigaki] (n, vs) (1) writing with the brush in one's mouth; (n) (2) foreword; preface; (3) affidavit; written confession (of a commoner in the Edo period)