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
I've got to go. Tomorrow is Monday,
我得走了。明天是星期一。
To ruin a brand-new car
毁坏了新车
At night, the children always do their homework.Then they go to bed.
晚上，孩子们总是做作业，然后去睡觉。