Patroling
vt.& vi. 巡邏，巡查（patrol的現在分詞形式）
??? 情景例句
Tom's about to open the doors. Tom
準備要開門了。
When the fire started, I was writing letters.
當火起來的時候，我在寫信。
But the copy he gave him had not been written out in full as usual.
但這回獄卒給貴族的信沒有像往常那樣把全文寫全，