sentry [ˈsɛntri]

例句:

• The sentry would not let her enter.
  警卫不让她进去。
  
• Aren't you supposed to be on sentry duty?
  你不是应该在站岗吗？
  
• to be on sentry duty
  放哨
  
• A sentry's voice westward: Halt! Who goes there?
  来自G. B. Shaw
• Apata comes out of hiding and sneaks past the posted sentry.
  来自H. Bascom
• You need to do some nighttime sentry duty on your marriage bed.
  来自NEWYORKER
• They were taking pictures of the sentries.
  他们在拍哨兵的照片。
  来自《权威词典》