If you have the choice between separating two design segments by a visible line or by some whitespace, it's usually better to use the whitespace solution.
如果有两种选择，一是用明显的竖线将两个区域隔开，另一个是使用一些空白达到这种效果，通常比较好的选择是后者，即留出空白。
Assume your normal golf stance facing a visible line parallel to your feet, if possible.
假定一个常规的击球初始姿势，如果可能的话在面前画一条可见的与双脚平行的线。
Also, the tree's header must be set as visible (line 21) for the column's headers to display.
而且，树的标题必须设置为可视的(第21行)，以显示列的标题。
Also, the tree's header must be set as visible (line 21) for the column's headers to display.
而且，树的标题必须设置为可视的(第21行)，以显示列的标题。
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