例句
英语四级真题
  • Clarke and her colleagues introduced bacteria to floor tiles (瓷砖) and then placed cookies on the tiles for varying times.
    2018年12月四级真题(第三套)阅读 Section B
  • They reported bacteria were transferred from the tiles to the cookies within five seconds, but didn't report the specific amount of bacteria that made it from the tiles to the food.
    2018年12月四级真题(第三套)阅读 Section B
柯林斯高阶英汉双解学习词典释义