And that is not all: the edges of the graphene ribbons are smooth and armchair-shaped, and the ribbons themselves are either straight or zigzagged, depending on the monomers used to make them.
而以上并非全部：这种石墨烯带的边缘是椅型的，很平滑；取决于使用的单体，其本身可以是笔直或锯齿状的。
2
Avoid straight cut styles or anything with sharp edges. The key to dealing with a square face is movement.
方形脸一定要避免死板的直发或者看起来尖锐不柔和的发型。
3
Caudal edges have to be straight or curving outwards, and not bending inwards.