Zhip , I on your other post also noted about an electronic translator , as soon as you meet go buy one if you have not already and make sure it has a stylus pen for Chinese writing Besta is the best brand and they are readily available Just make sure that it has a rechargable battery and you can just plug it into an electrical socket of a night , so much better than keepng a heap of batteries spare .
Again your lady will sort you out with a prepaid Chinese sim card , don't but anything unless it is a must at the airports as you will be ripped off , regards Sujuan and Robert .