int.一种喊声
n.守猎时呼啸猎犬的喊声
v.高呼;喊叫着追赶;高声招呼喊叫
"Halloo!" he shouted to his hounds. “嗨!”他对猎狗喊到。
Do not halloo until you are out of the woods. (谚)未出险境,先别高兴。