patrols
n. 巡逻队
v. [军]巡逻，巡查（patrol 的三单形式）
例句
Security guards make regular patrols at night.
夜间保安人员定时巡逻。
《牛津词典》
Trials of more extensive, all-day litter patrols were underway in Manchester and Birmingham.
曼彻斯特和伯明翰正在进行更大规模的全天垃圾巡逻试验。
He recognised efforts made by McDonald's, including placing litter bins and increasing litter patrols, but its litter remained "all too prevalent".
他认可麦当劳所做的努力，包括放置垃圾箱和增加垃圾巡逻，但麦当劳的垃圾仍然“过于常见”。
