词根词缀：pand-, pans-, pass-

【来源及含义】Latin: stretch, stretching; spread, spreading

【同源单词】expand, expander, expanse, expansibility, expansible, expansibleness

词根词缀：spano-, span-

【来源及含义】Greek: scarce, scarcity; rare, uncommon

【同源单词】spanandrous, spanandry, spandrel, spanemia, spanemic, spanemy