noun 下载 🔗分享 声呐浮标，水声浮标 A buoy that sends a radio signal when it detects the sound of underwater objects (such as submarines). Examples : "The navy deployed a sonobuoy from the helicopter to listen for any unusual sounds in the ocean, hoping to detect a submarine. " 海军从直升机上投放了一个声呐浮标，用来监听海里是否有异常声音，希望能探测到潜艇。 nautical military technology signal sound ocean device electronics machine war vehicle 与AI对话词汇游戏阅读练习
