Leading lines are most effective as diagonals .

对角线是最好的引导线。

Seize and control open files and diagonals with pieces .

用棋力夺取和控制开放线和开放斜线。

Look at the white diagonals andyou will see why .

看着白色的对角线你就知道为什么了。

If I scissor the rectangle or parallelogram along their diagonals . What will be then ?

如果剪开的是一个长方形或者平行四边形，又会怎么样？请告诉你的同桌。

This is very similar to the effect that diagonals can have on the viewer ; the instability and chaos makes our eyes move around , and this naturally imparts energy into an image .

这与斜线给观者的效果非常类似；动荡与混乱让我们的视线四处游走，这自然给图画赋予了活力。