词根词缀：cyclo-, cycl-, -cycle, -cyclic, -cyclical, -cycles

【来源及含义】Greek: around, round, circle, circular

【相关词根词缀】 Related "around, round, surrounding" units: ambi-; ampho-; circ-; circum-; gyro-; peri-.

【同源单词】acyclic, anticyclone, anticyclonic, bicycle, biogeochemical cycle, cycle

词根词缀：en-, em-, el-

【来源及含义】Greek: in, into, inward; within; near, at; to put, to go into, or to cover with; as, entomb, encamp, enfold; to provide with; as, to enlighten; to cause to be; as, to enlarge; thoroughly; as, enmesh; in, within, into; as enzootic

【相关描述】This prefix, en-, changes to em- before b, p, or ph.

【同源单词】disembark, disembarkation, embark, embarkation, embarkment, embezzle

词根词缀：-ical

【来源及含义】Latin: from -icalis, a suffix that forms adjectives from nouns; of or having to do with; having the nature of; constituting or being; containing or made up of; made by or caused by; like, characteristic of; art or system of thought; chemical terms

【同源单词】abdominovesical, abiological, ableptical, academical, acarological, acarologically