Rbd
abbr. rapid beam deflector 快速波束偏转器; required beginning date 必需的初始日期; right border of dullness 右浊音界（心脏叩诊）
🗣️ 情景例句
She is at the top of her class.
她在班里名列前茅。
Oppression maketh a wise man mad.
人处压迫下，聪明也会疯。
Yes, my brother Bob is coming with me to the airport to see me off.
有，我兄弟鲍勃将和我一起到机场，送我上飞机。