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
and a decision to make.
而且必须做一个抉择。
Whose responsibility are the shipment charges?
运费由谁来负责呢？
The bus stop is in front of a station.
公共汽车站在火车站前面。