How to say "因为他天资愚钝" (yīn wèi tā tiān zī yú dùn) in Chinese dialogue

yīnwèitiāndùn

Because he is dull-witted

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0124:44
wèi

and you the junior?

LINE 0224:48
PLAYING SCENE
yīn
wèi
tiān
dùn

Because he is dull-witted

LINE 0324:50
gēn
chà

and has poor aptitude.

Show Information
Source MediaTV Series
Season & EpisodeS1 E37
Timestamp24:48
TMDB ID272715