Keepalive message
[计] 存活报文
🧩 词语组成解析
🗣️ 情景例句
I think you are getting off the subject. Could we get back to the main point, please?
我觉得你跑题了。 我们能不能回到主题上来？
May I try it on?
我能试穿吗？
In summer it is often too hot, and in winter it is too cold.
夏天常常太热，冬天又常常太冷。