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
That's OK, honey.
没有关系，亲爱的。
Progress is the activity of today and the assurance of tomorrow.
进展即今日的活动和明日的保证。
What should I do? Maybe I should have told that workmate I knew what he was doing.
我该怎么办？也许我早该对那个工人说我知道他的行为。