Bfd
abbr. 双向转发检测机制（Bidirectional Forwarding Detection）；发现路由器转发故障的新协议；二进制文件描述符（Binary File Descriptor）
🗣️ 情景例句
You miss her.
你思念她。
An artist is making computers look beautiful.
画家在给电脑化妆。
Her tooth ached all night.
她牙疼了一整夜。