Polythionate
连多硫酸盐
🗣️ 情景例句
I heard that some tours actually go down into the canyon. Is that true?
我听说有的旅游团真正下到峡谷里去了。那是真的吗？
I am very content with my life at present.
我很满足目前的生活。
At present I'm giving a lot of concerts.
现在我还要开一些音乐会。