n.鴿叫聲

v.咕咕地叫；(溫柔而輕聲地)說情話

abbr.首席運營官(=Chief Operating Officer)

When he heard a small sound like the coo of a dove he started to shove. 當他聽到了一聲小鳥般清脆的聲音，便開始往（煙囪）上爬。

"It will be all right, "she cooed soothingly. “就會好起來的，”她輕柔地安慰說。

Let's leave the two young people to bill and coo together. 咱們讓這對年輕人單獨在一起談情說愛去吧。

I went for the interview of a position of COO. 我面試了首席運營官的工作。