词根词缀：polis-, polit-, poli-
【来源及含义】Greek: city; method of government; citizenship, government, administration
【相关描述】Don't confuse this polis, "city" with the suffix -polism, etc. meaning "selling".
【同源单词】aerotropolis, Annapolis, apolitical, Aquapolis, Biopolis, Constantinople
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-.