资料来源 : Webster's Revised Unabridged Dictionary (1913)

Bettong \Bet"tong\, n. [Native name.] (Zo["o]l.)
   A small, leaping Australian marsupial of the genus
   {Bettongia}; the jerboa kangaroo.

资料来源 : WordNet®

bettong
     n : short-nosed rat kangaroo