Prd
abbr. 综合性技术研究与开发（Polytechnical Research and Development）；产品研究与开发（Product Research and Development）；产品需求文档（Product Requirement Document）
🗣️ 情景例句
I felt differently at that time.
那时我的感觉又不一样了。
Yes, she's free then.
可以，她那时有空。
Soon there were many wild horses across the country.
不久，乡间就有了许多野马。