know nothing at all
Nothing, Chinese idiom, Pinyin is y ī w ú Su ǒ w é n, which means that I haven't heard of it at all, and I don't know it at all. From to Zhang tingqian.
The idiom comes from Lu Xun's to Zhang tingqian: "but I don't know anything about it here. I think it's probably over."
know nothing at all
what the heart wishes one 's hands accomplish - dé xīn yìng shǒu
try to pander to sb . 's weaknesses - ē qí suǒ hào