Patrolling
vt.& vi. 巡邏, 巡查（patrol的現在分詞形式）
??? 情景例句
Bicycle theft is on the increase in the big cities.
大城市里盜竊自行車的案件與日俱增。
I've heard so much about you!
久仰大名！
IN THE MUSEUM
在博物館里