○○○ oar ⪢⪢
Besides its streamline body, its most obvious adaptation into underwater life is a pair of feathered rear legs that have evolved into oars and help it maneuver underwater.
http://qindex.info/i.php?x=15858

○○○ -ious ⪢⪢
hilarious, previous, curious, serious, envious, notorious, glorious, obvious #bookmark
http://qindex.info/i.php?x=11911

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