triweeklyWiktionary 原文英美构词拆解tritri-前缀weeklyweekly词干tri-Three. · (chemistry) Used for the digit three to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.词源说明From tri- + weekly.释义形容词adjective1Occurring three times per week.2Occurring once every three weeks.3Published three times a week.名词noun1A publication published three times a week.