快速答案
terminar 常强调完成任务；acabar 常强调某事结束或某物用尽。
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
terminar
to finish or complete
Use terminar for bringing a task, course, relationship, or planned activity to its end.
acabar
to end, run out, or have just done
Use acabar for something coming to an end, being used up, or the construction acabar de.
如何选择
- terminar: Choose terminar if the sentence points to bringing a task, course, relationship, or planned activity to its end.
- acabar: Choose acabar if the sentence points to something coming to an end, being used up, or the construction acabar de.
例句
Terminei o exercício.
I finished the exercise.
O café acabou.
The coffee ran out.
常见误区
They overlap for many activities, but acabar de plus infinitive means “to have just done,” not simply to finish.
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 terminar，一次用 acabar。如果两个版本都可以，说明意思怎样变化。