词根词缀：ob-5

【来源及含义】Latin: completely, totally

【相关描述】Before c, ob- becomes oc-; before f, ob- becomes of-; before g, ob- becomes og-; before p, ob- becomes op-; before m, ob- becomes o-

【同源单词】observe, obsess, obsolete, obsoletely, obsoleteness, occupy

词根词缀：serv-, -serve

【来源及含义】Latin: servare, to watch, to keep safe, to protect, to maintain; to preserve

【相关描述】Don't confuse this serv-, -serve with another Latin serv- which means "servant" or "slave".

【同源单词】archaeological conservancy, Arte conservatus, astronomical observatory, behavioral observation audiometry, conservation, conservation