molehill

n 1 small pile of earth thrown up by a mole2(1) when it is digging underground 鼹鼠丘. 2 (idm 习语) make a mountain out of a molehill => mountain.

mohair, Mohammedan, moiety, moist, moisten, moistened, moistness, moisture, moisturize, moisturise, moisturizer, moisturiser, moke, molar, molasses, mold, molder, molding, moldy, mole, molecular, molecule, moleskin, molest, molestation, molester, moll, mollification, mollify, mollifying, mollusc (US also mollusk), mollycoddle, Molotov cocktail, molt, molten, molto, molybdenum, mom, moment, momentarily, momentary, momentous,