Sdb
abbr. 存储数据缓冲器（Store Data Buffer）
🗣️ 情景例句
I haven't had a minute to relax all day.
我今天连一分钟都没休息。
A bad conscience is a snake in one's heart.
做贼心虚。
But to tell you the truth.you need a new car!
不过说实在的，您需要一辆新车了。