快速答案
cedo 表示相对计划时间较早；logo 表示很快，也可表示“因此”。
可靠的方法是先判断这个词在句子里的功能，再翻译。
每个词的作用
cedo
early
Use cedo for before the usual, expected, or desired time.
logo
soon or therefore
Use logo for after a short time, or as a formal connector introducing a conclusion.
如何选择
- cedo: Choose cedo if the sentence points to before the usual, expected, or desired time.
- logo: Choose logo if the sentence points to after a short time, or as a formal connector introducing a conclusion.
例句
Cheguei cedo ao trabalho.
I arrived at work early.
Volto logo.
I will be back soon.
常见误区
Volto cedo promises an early return; volto logo promises a return after a short wait.
放到语境中练习
从你的真实生活中选一个句子，写两遍：一次用 cedo，一次用 logo。如果两个版本都可以，说明意思怎样变化。