Sdb
abbr. 存储数据缓冲器（Store Data Buffer）
🗣️ 情景例句
and something blue.
一些蓝色的。
I ask him to do the housework now.
我要求他现在做家务。
He can't write very much on a card, Mum.
在明信片上他写不了很多，妈妈。