vary
因条件不同而呈现差异(随情境/对象/时间变化)
differ
不同,有差异(侧重两者之间的对比差异,differ from = 与…相比有不同)
The level of digital literacy among employees tends to vary significantly depending on age, educational background, and prior work experience.
员工的数字素养水平往往因年龄、教育背景和此前工作经验的不同而差异显著。
The northern dialect differs from the standard form of the language in both vocabulary and pronunciation.
北方方言在词汇和发音上与该语言的标准形式有所不同。