Sdb
abbr. 存储数据缓冲器（Store Data Buffer）
🗣️ 情景例句
to ask Dad to sign as a guarantor.
请爸爸当担保人为我签字。
It should be there at 11:45, but it may be a little late.
应该是11点45分到那里，但也可能稍晚一点。
Look! What does that boat look like?
瞧！那艘船看起来像什么呀？