Polyu
[化] 聚尿苷酸
🗣️ 情景例句
This is something you'll have to work out yourself.
这就是你必须自己做出决定的事情。
I'm really sorry, but I seem to have misplaced your scarf.
真对不起，我忘记把你的围巾对丢在什么地方了。
Like exercise books, rulers, pens, colour pencils, erasers and maps.
像练习本、格尺、钢笔、彩色铅笔、橡皮和地图等。