Epirb
abbr. 紧急无线电示位标（Emergency Position Indication Radio Beacon）
🗣️ 情景例句
John isn't here today. That figures, he looked very sick yesterday.
约翰今天没有来，怪不得，他昨天就好像不太舒服。
Has this seat number started boarding?
这个座位号已开始登机了吗？
All produets have to go through five checks in the whole process.
所有产品在整个生产过程中得通过五道质量检查关。