How to say "但练了半天也没有练明白" (dàn liàn le bàn tiān yě méi yǒu liàn míng bái) in Chinese dialogue

dànliànlebàntiānméiyǒuliànmíngbái

but I'm having a hard time mastering it.

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0128:08
shì
lüè
zhī
èr

of the demonic sect,

LINE 0228:09
PLAYING SCENE
dàn
liàn
le
bàn
tiān
méi
yǒu
liàn
míng
bái

but I'm having a hard time mastering it.

LINE 0328:11
jīn
ér
shì
qiǎo
le
pèng
zhe
le

What luck running into you today.

Show Information
Source MediaTV Series
Season & EpisodeS1 E24
Timestamp28:09
TMDB ID262932