快速答案
parecer 表示给人的印象；aparecer 表示出现或显现。
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
parecer
to seem or look
Use parecer for giving an impression or resemblance.
aparecer
to appear or show up
Use aparecer for becoming visible, being found, or arriving unexpectedly.
如何选择
- parecer: Choose parecer if the sentence points to giving an impression or resemblance.
- aparecer: Choose aparecer if the sentence points to becoming visible, being found, or arriving unexpectedly.
例句
A solução parece simples.
The solution seems simple.
Uma mancha apareceu na parede.
A stain appeared on the wall.
常见误区
The prefix changes the event: ele parece cansado means he looks tired; ele apareceu cansado means he showed up tired.
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 parecer，一次用 aparecer。如果两个版本都可以，说明意思怎样变化。