Rtm
abbr. 运转计时器（Running Time Meter）
🗣️ 情景例句
It's nice to be alone with you, Grandpa.
很高兴单独与你在一起， 爷爷。
I suppose it's an inconvenience for you to do this.
我推测对你来说做这件事情是很不方便的。
Are you crazy?
你疯了吗？