Perhaps this can partly explain the existence of left-handers in human societies.
也许这可以部分解释人类社会中左撇子的存在。
So it is difficult for left-handers to use most tools.
因此对于左撇子人来说很难去使用大多数工具。
Many children, especially left handers who use conventional pens cannot see their work.
许多使用左手写字的小孩，在使用传统笔时看不到他们自己所写的字。
Many children, especially left handers who use conventional pens cannot see their work.
许多使用左手写字的小孩，在使用传统笔时看不到他们自己所写的字。
应用推荐