1. on patrol 巡逻
Security forces remained on patrol until late into the night.
保安部队继续巡逻至深夜
。2. in the midst of 正当……的时候
She discovered it in the midst of sorting out her father's things.
她在整理父亲的东西时发现了它
。
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1. on patrol 巡逻
Security forces remained on patrol until late into the night.
保安部队继续巡逻至深夜
。2. in the midst of 正当……的时候
She discovered it in the midst of sorting out her father's things.
她在整理父亲的东西时发现了它
。