词根词缀：flect-, flex-

【来源及含义】Latin: bend, bending; curve, curving; turn, turning

【相关词根词缀】 Inter-related cross references involving word units meaning "bend, curve, turn": diversi-; diverticul-; gyro-; meand-; -plex; streph-; stroph-; tors-; tropo-; verg-; vers-; volv-.

【同源单词】anteflect, anteflexion, baroreflex, biflex, chemoreflex, circumflex

词根词缀：intro-

【来源及含义】Latin: within, inside, into, in, inward

【相关描述】Borrowed from Latin intro-, from pre-Latin interos, from inter-,"between".

【同源单词】introduce, introduced, introducer, introduction, introductive, introductory

词根词缀：-tion

【来源及含义】Latin: a suffix forming nouns from verbs of condition and action; an act or process: resumption, absorption; state or condition, redemption, exhaustion; something resulting from or otherwise related to an act or process, assumption, friction

【相关描述】This unit is presenting a small fraction of the hundreds of words ending with the suffix of -tion; however, there is a significant number of words which may help everyone have a better understanding and appreciation of the use of this element.

【同源单词】abduction, abjection, ablution, ablution, abolition, abruption