coo

n.鸽叫声

v.咕咕地叫；(温柔而轻声地)说情话

abbr.首席运营官(=Chief Operating Officer)

When he heard a small sound like the coo of a dove he started to shove. 当他听到了一声小鸟般清脆的声音，便开始往（烟囱）上爬。

"It will be all right, "she cooed soothingly. “就会好起来的，”她轻柔地安慰说。

Let's leave the two young people to bill and coo together. 咱们让这对年轻人单独在一起谈情说爱去吧。