词根词缀:tri-, tre-
【来源及含义】Greek > Latin: a numerical prefix meaning, three, thrice, threefold; triple; a word element for number 3
【相关词根词缀】;Cross references of word families that are related, partially or totally, to: "three, third":;terce-,terti-,trigono-,trito-.
【同源单词】ternary, treble, trebly, triacid, triact, triad