Patrolling
vt.& vi. 巡逻, 巡查（patrol的现在分词形式）
🗣️ 情景例句
thank you very much.
十分感激你。
We used to have a lot of fun when we were that age.
当我们是变老时，我们过去常有很多趣事。
'Would a later train get you to work on time?' asked the inspector.
“晚一点儿的车也能送您按时上班吗？”