Looking up...
To understand every part or aspect of something completely.
这个问题很复杂，但经过他的讲解，我全部都懂了。
This problem was complicated, but after his explanation, I understood everything.
这个电影的情节太复杂了，我没全部都懂。
The plot of this movie was too complex; I didn't understand everything.
Often used to emphasize complete comprehension after an explanation or study session.
Use 全部都懂 when you want to emphasize that you (or someone else) have fully grasped a concept after an explanation. It is less formal than 完全理解 and more conversational.
While 全部都懂 is useful, avoid using it in formal writing or professional contexts where 完全理解 or 充分理解 would be more appropriate.
Composed of 全部 (quán bù, 'all' or 'entire') and 都懂 (dōu dǒng, 'all understand'). The phrase emerged as a natural collocation in Chinese to express complete comprehension, with no specific historical origin.
This phrase is commonly used in everyday conversation to indicate full understanding. It is more emphatic than 完全理解 and often implies that the speaker has no remaining confusion.