Colloidal alumina
[化] 胶体氧化铝
🧩 词语组成解析
a. 胶态的, 胶质的\\n[医] 胶体的, 胶态的, 胶样的
n. 矾土\\n[化] 矾土; 氧化铝
🗣️ 情景例句
I'm working on-it.
我正在做这项工作。
What kind of work do you do? Are you a salesman?
你做什么样的工作？ 你是一售货员吗？
However, there is an even more insidious kind of pollution that particularly affects urban areas and invades our daily lives, and that is noise.
但是，还有一种更加隐蔽有害的污染，它专门影响城镇地区，侵袭我们的日常生活，那就是噪音。