Polyu
[化] 聚尿苷酸
🗣️ 情景例句
The cut healed slowly.
伤口慢慢地痊愈了。
Textile business has become more and more difficult since the competition grew.
随着竞争的加剧，纺织品贸易越来越难做了。
We really need that material, you know.
你知道，我们急着需要那批材料。