Patroling
vt.& vi. 巡逻，巡查（patrol的现在分词形式）
🗣️ 情景例句
Please have your customs declaration form ready.
请把您的申报表准备好。
You mind your business, and I'll mind mine.
井水不犯河水。
He has to deduce what he can from the few scanty clues available.
他们必须根据现有的不充分的线索进行推理。