group differences的用法和樣例：
例句
- Large Yorkshire had highly significant differences with Landrace pig.
外來豬種間只有大約克和長白間差異顯著。 - Piaget's cognitive development theory and Symbolic Interactionism were adopted to explain and understand the differences found in age groups and ethnic groups.
本研究應用認知發展理論和符號理論來解釋及討論所發現的組間差異。
