hailing distance
美
英 
例句
When the boat came within hailing distance, I asked if I could borrow some gasoline.
當船靠近的時候,我問是否可以借點汽油。
Every one lived within hailing distance of every 5ne else.
每個人都居住在5ne左右距離遠的地方。
They sailed within hailing distance of the island.
他們緊靠著該島航行。