guard ·noun (PERSON WHO PROTECTS)

Definition: someone whose job is to protect a person, place or thing from danger or attack, or to prevent a person such as a criminal from escaping Level: B1

保安负责保护大楼。

保安负责保护大楼。

A security ___guard is responsible for protecting the building.

 监狱警卫必须时刻保持警惕。

监狱警卫必须时刻保持警惕。

Prison ___guards must be alert at all times.

 边境由边防警卫巡逻。

边境由边防警卫巡逻。

The frontier is patrolled by border ___guards.
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