五字母词根: juven

juven= 年轻

juvenile

juven

juvenile ˈcourt

juvenile deˈlinquency

juvenility

juvenescence

juvenescent

rejuvenate

五字母词根：later

later=边

lateral

unilateral

bilateral

trilateral

quadrilateral

multilateral

equilateral

五字母词根: insul

insul=island岛

insular

insulate

insulin

peninsula