Xbr
abbr. experimental breeder reactor 实验性增殖反应堆（代号）
🗣️ 情景例句
I'm extremely sorry for the delay.
对此延误，我深感抱歉。
Would you please pass me the sugar?
可以请你把糖递过来吗？
I can't understand why he is being so selfish. He isn't usually like that.
我不明白他此刻怎么这么自私。他平时不这样。