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XDD you know some Chinese pinyin haha
You deserve that :D
Nice copper(II) sulphate!!! this is a really classical one XD

I have a few Chinese colleagues and know just enough phrases to make them smile and politely say I almost pronounced it correctly. Méiguānxì.

You even put the tone annotation correctly!!
I saw most of the people omitted those annotation and the rest of the people will just make guess from the meaning of the combination haha

The software I've been using to learn actually tests me on that, I'm glad it's worthwhile.