Pir
abbr. 蛋白序列数据库（Protein Identification Resource）；聚三聚氰酸酯
🗣️ 情景例句
Don't you feel well?
你感觉不好吗？
This is my last warning.
这是我最后的警告。
Unfortunately you'll have to pay the fine before you check those books out.
在你借书之前你要先付清罚款。