Polyurea
[化] 聚脲
🗣️ 情景例句
So, it's virtually risk-free for you.
所以，事实上对您而言，是完全没有风险的。
Because I wanted to thank you all for being kind to me while I have been here.
是因为想对我在此工作期间大家给我的帮助表示感谢。
Past experience has taught us that certain accomplishments are beyond attainment.
以往的经验告诉我们有些事是办不到的。