Keepalive message
[计] 存活报文
🧩 词语组成解析
🗣️ 情景例句
I was so tired
我太累了
I'm all mixed up.
我全搞混了。
a ticklish business which is achieved with the aid of two tame elephants roped to the captive on either side.
这是一件棘手的事，需要在它两侧拴上两头驯服的大象才能完成。