difference n. 差异，不同（之处）
dif(dis-=apart) fer(carry) ence（名词后缀）→差额
It won't make much difference whether you go today or tomorrow. 你今天去还是明天去都没多大关系。
同根词
dig v. 挖（洞，沟等）
In those days we often went to dig for wild vegetables. 那时候我们常常出去挖野菜。
I'll dig some potatoes for lunch. 我要挖点土豆作午餐。
direct adj. 直接的，直截了当的
di(dis-=apart) rect(right)→直接的
His death was a direct result of your action. 他的死是你的行为直接造成的后果。
同近义词
disability n. 缺陷，障碍
As a matter of fact, many people have a disability. 事实上，许多人身体都有某种缺陷。
