Please improve .
Pinyin is not correct. People who want to learn Chinese or read the Chinese will pronounce it wrong. Please change pinyin. I am Chinese and I know how to read Chinese characters, but when I read the pinyin, I have NO idea how to read it. Probably because the spelling is wrong or the sound mark is wrong. Please Chang and update. Read the other reviews and saw that one person is complaining that you have to pay $ 4.99 to get audio. Please change that too. Adds, I don’t like how you gotta pay to have no adds. I think by changing these things, you would get more people to use