词根词缀：ath-, athl-
【来源及含义】Greek: struggle, a contest [in war or in sports], to contend for a prize; physical activity, rigorous self-discipline or training
【同源单词】ascesis, ascetic, ascetic, asceticism, athlete, athletic
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-.