Pir
abbr. 蛋白序列数据库（Protein Identification Resource）；聚三聚氰酸酯
🗣️ 情景例句
You did a good job sewing this dress, I can see that you sewed the sections in the correct order.
你这条裙子做得不错，我看得出来你是按顺序来做缝纫的。
Youth is a blunder; manhood a struggle, old age a regret.
青年冒失莽撞；成年发奋图强；老年遗憾懊丧。
First left, and second right. Thank you!
先在第一个拐角向左拐，然后在第二个拐角向右拐。谢谢你！