And it doesn't have to be a smartphone, it can be a basic phone, like the phone on the right, the basic Symbian phone that's very common in developing countries.
而且不需要是智能手机。 他可以是一个非智能手机，像右边的这个手机一样， 你知道，这种非智能的塞班手机 在发展中国家是非常普遍的。