中英释义：
双语例句
保安员每小时巡逻一次。
The security officer patrols every hour.
守卫每小时巡逻一次大楼。
The guards patrol the building every hour.
保安每小时巡逻一次大楼。
The security guards patrol the building every hour.
重点词汇
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每小时
omni hora; quaque hora; omn. hor.; qh
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巡逻
patrol; go on patrol
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一次
once; on one occasion; for the first time