词根词缀：pedo-, ped-

【来源及含义】Greek: pedon, ground, soil, earth

【相关描述】Don't confuse this Greek element with another Greek pedo- that means "child" or the Latin ped which means "foot".

【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agrest-; agri-; agro-; argill-; choro-; chthon-; epeiro-; geo-; glob-; lut-; myso-; pel-; rhyp-; soil-; sord-; terr-.

【同源单词】epipedos, ped, pedalfer, pedality, pediment, pediophilous

词根词缀：sphero-, spher-, -sphere-

【来源及含义】Greek: ball, round, around; globe, global; body of globular form; by extension, circular zone, circular area

【相关词根词缀】 Related ball, sphere-word units: glob-, glom-; hemoglobin-.

【同源单词】adminisphere, aerosphere, allobiosphere, anthroposphere, asphere, aspheric