Trr
abbr. teaching and research reactor 教学与研究用反应堆; train repetition rate 列车重复速率
🗣️ 情景例句
There's nothing else in the appointment book.
在工作日， 没有别的事了。
Never cackle till your egg is laid.
事竟成，才声张。
I find young people exciting.They have an air of freedom,
我觉得年轻人令人振奋，无拘无束。