例句
英语四级真题
  • Fortunately for him, the beach life guards were quickly on the scene to stop him from drowning.
    2019年12月四级真题(第二套)听力 Section A
英语六级真题
  • After repeating the question, she explained that the sufficient number of security guards would be working at peak hours to speed things along
    出自-2012年12月听力原文
  • How to train the newly recruited security guards
    出自-2012年12月听力原文
  • However, they're more cautious about sharing information with nonmembers, as the organization guards against others developing the ability to hiJack and take control of their satellites.
    2019年6月六级真题(第三套)阅读 Section B
柯林斯高阶英汉双解学习词典释义