快速答案
ter 表示拥有和年龄；estar com 用于表达许多暂时的感觉或状态。
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
ter
to have or possess
Use ter for possessions, family relationships, age, and things that belong to someone.
estar com
to be experiencing
Use estar com for temporary physical states such as hunger, thirst, fear, heat, or a cold.
如何选择
- ter: Choose ter if the sentence points to possessions, family relationships, age, and things that belong to someone.
- estar com: Choose estar com if the sentence points to temporary physical states such as hunger, thirst, fear, heat, or a cold.
例句
Eu tenho vinte anos.
I am twenty years old.
Estou com fome.
I am hungry.
常见误区
Translate the whole idea, not the English verb. “I am hungry” is estou com fome, but “I am twenty” uses tenho.
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 ter，一次用 estar com。如果两个版本都可以，说明意思怎样变化。