You can gain weight ______ eating fast food too often. 太常吃速食會讓你變胖。 a. on b. at c. in d. by Explanation 【題目解析】 by在這裡的意思是「透過、藉由…」,後面加上手段,即透過做某件事達成前面的情況,正確答案為D。 Chinese translation After leaving this page, need to use 1 more coin to play audio Sorry! You don't have enough coins.