It is the defining dichotomy of our age: which operating system do you use, and why? And that's why we're going to give you the chance to talk all about it in our speaking practice lesson for today. Just pick up the phone and call us. And if you're feeling particularly at a loss for words, check out our vocabulary section where we've compiled a number of related words that might come in handy for expressing your love-hate relationship with high tech.

Premium subscribers please visit our text page, dial the toll-free telephone number listed there and key in your PIN number. Then tell us your stories of computing misery or glory. Once you've finished your call your recording will be automatically submitted to our teachers for review. We'll listen and get back to you in a day or two with feedback on your spoken Chinese.