它始终存在，并在每一个技术周期转换的时刻变得格外清晰。
Shopping for a phone can be an ordeal. That’s why we’ve tested almost every Android phone, from the smartest to the cheapest—even phones that fold—to find the ones worth your money.
，更多细节参见PDF资料
Combined with the above proposal, using it for NewProtocol might
be wrong — actually — some parts will be wrong. Please tell me
（本报记者刘新吾、李君强整理）