DICT.TW Dictionary Taiwan

 mole·hill /ˈmolˌhɪl/
 鼴鼠丘,鼴鼠窩;蟻山

 Mole·hill n. A little hillock of earth thrown up by moles working under ground; hence, a very small hill, or an insignificant obstacle or difficulty; as, to make a mountain out of a molehill.
    Having leapt over such mountains, lie down before a molehill.   --South.
 ◄ ►

 molehill
      n : a mound of earth made by moles while burrowing