快速答案
incerto 表示不确定；inserto 表示插入或包含，是正式用语。
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
incerto
uncertain
Use incerto for not known, decided, reliable, or predictable.
inserto
inserted or included
Use inserto for placed within a document, work, or larger whole.
如何选择
- incerto: Choose incerto if the sentence points to not known, decided, reliable, or predictable.
- inserto: Choose inserto if the sentence points to placed within a document, work, or larger whole.
例句
O futuro do projeto ainda é incerto.
The future of the project is still uncertain.
O mapa está inserto no anexo.
The map is included in the appendix.
常见误区
Inserto is formal and often replaced by inserido in current prose. It must not be used for doubt or uncertainty.
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 incerto，一次用 inserto。如果两个版本都可以，说明意思怎样变化。