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
You're fooling me.
你想骗我。
Did everyone you invited show up?
你邀请的人都来了吗？
he knows while he looks at one side what the other side is like;
他看物体的一边时，便知道另一边是个什么样子。