Desulphuration
除硫
🗣️ 情景例句
Thanks a million, Mr. Lee, for what you have done for me.
非常感谢你为我所做的一切。
I ran all the way to school, otherwise I'd have been late.
我一路跑到学校，不然就迟到了。
And this is Luming.He is Chinese.
这位是鲁明。他是中国人。