Patrolling
vt.& vi. 巡逻, 巡查（patrol的现在分词形式）
🗣️ 情景例句
I'm supposed to be worried about my daughter,
我原该为我的女儿担心才是。
The outdoor concert was called off due to the weather.
露天音乐会由于天气原因被取消。
During the journey, their boat began to sink.
途中，船开始下沉，