它们被用来勾勒图形以显示边界，就像你在铅笔画中使用实线一样。
They were used to outline figures to show boundaries just like you might use solid lines in a pencil drawing.
以女子少年体操运动员平衡木的基本难度训练为例，对其进行了理论探讨与实线总结。
The paper has studied and sum up the difficulty training of BB of juvenile female gymnasts from theory and pra...
应用推荐