Keepalive message
[计] 存活报文
🧩 词语组成解析
🗣️ 情景例句
We'll all miss her.
我们都会想念她的。
You never know what you can do till you try.
事非经过不知难。
I said that together we could light a fire that could be seen for many miles.
我说，我们一起点燃一堆火，让几英里远都能看见。