Pir
abbr. 蛋白序列数据库（Protein Identification Resource）；聚三聚氰酸酯
🗣️ 情景例句
Lend-me your black-bag.
把你的黑包借给我吧。
You can receive our program at short wave 37.5 MH.
你可在短波37.5赫兹上收到我们的节目。
Excuse me. Is there a bookshop near here?
请问，附近有书店吗？