Pdb
abbr. 临时区议会；物理数据库
🗣️ 情景例句
Biology and mathematics.
生物学和数学。
I'd like to express my gratitude to you for your advice.
对于你的忠告，我想表示感谢之意。
The number of wagging dances per minute told the exact distance to the feeding place.
每分钟跳摇摆舞的次数说明了到喂食点的精确距离。