2007 年上市的诺基亚 1200，最长支持 7 小时续航，接近半个月的待机，而且当时的手机有个特点，电池可以拆了更换，真没电了，万能充掏出来一夹又是一条好汉。
Since every person is different, there’s no one best ergonomic keyboard layout. The standard QWERTY layout is what most people are used to. The Dvorak, Colemak and Workman layouts rearrange the board to put the more commonly used letters closer to the home-key position. All three are intended to minimize your finger movements. That may indeed feel more comfortable and less fatiguing, but people used to the QWERTY layout will likely need to relearn how to type.
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Image Credit: Sausly. Federica Mercuriello.
PPT 的好坏见仁见智，我仅从能否在工作场景下使用来主观评判；