我需要多少数据?
如果您主要使用Wi-Fi，您可能不需要那么多数据。You can get dirt-cheap SIMs for tablets from £3 or £4 a month – although you won’t get much data for this amount of money, and it won’t be enough if you regularly stream music or video while you’re out and about. Heavier users should assess how much data they use each month and then look for an appropriate SIM.
这几天你会有一个艰难的时间找到3G交易，所以你的决定几乎为你制作。