left-handedness造句

1、It all seems to parallel ideas about left-handedness in human cultures.
人类文明在对待左撇子的观念上似乎全是对等的。

2、What mechanisms control handedness and keep left-handedness rare?
是什么机制控制了用右手或左手的习惯并使左撇子很少出现？

3、Left-handedness has sometimes been treated as pathological.
左撇子有时被看做是病态的表现。