Questions & Answers about Cậu cũng nghĩ như thế.
Here cậu is the subject pronoun meaning you.
It is an informal way to address someone, often:
- around your own age
- someone you know fairly well
- a friend, classmate, cousin, or peer
It is not a universal word for you in Vietnamese. Vietnamese pronouns depend a lot on age, relationship, and social situation. In another context, you might need bạn, anh, chị, em, ông, bà, etc. instead.
Also, cậu can mean other things in different contexts, such as maternal uncle, so context matters.
Cũng usually means also, too, or as well.
So Cậu cũng nghĩ như thế means that the person being addressed shares the same opinion or thought as someone else.
A rough breakdown is:
- cậu = you
- cũng = also / too
- nghĩ = think
- như thế = like that / that way / so
Without cũng, Cậu nghĩ như thế would simply mean You think that way or You think so, without the idea of also.