Chinese languages

Once I went to Turkey for a business trip, I was almost get killed in a restaurant. I told the waitress that I can't eat nuts, and guess what? The dish served contained nuts. My allergic reaction was so severe that my blood pressure quickly dropped and I couldn't breathe, I was rushed to hospital......

My Chinese teacher told me that I need to work on my Pinyin tones, it's pretty difficult. I was looking through internet for some exercise for this purpose. I have a Mac. It turns out that there are many cool and free learning Pinyin tools out there. This is the one you should check out if you are b...