coastguard

详细解释:n. 海岸警备队, 海岸警备队队员

英语解释：

名词 coastguard:

a military service responsible for the safety of maritime traffic in coastal waters

例句：

The captain of the sinking ship used flares to attract the attention of the coastguard.轮船正在下沉，船长向海岸巡逻队发出闪光信号求救。