2. For that the present is too close and diversified, and the future too uncertain, to make
believable claims about it.
因为现在太过接近，太过多变，而未来则太不确定，无法形成一个可信的共同看法。
3. Once you are familiar with the parts, you can then free sketch at will, but always use the references to keep it authentic and
believable.
一旦你对这些部件都熟悉了，你就可以锁心所欲地画些草图，但是还是要使用图片参考让你的作品可信。
