How to say "因为手札内有夹层" (yīn wèi shǒu zhá nèi yǒu jiā céng) in Chinese dialogue

yīnwèishǒuzhánèiyǒujiācéng

in its hidden layer,

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0102:12
biàn便
kàn
dào
le
wēi
xīn
jīng

you already saw it

LINE 0202:14
PLAYING SCENE
yīn
wèi
shǒu
zhá
nèi
yǒu
jiā
céng

in its hidden layer,

LINE 0302:16
duì
ma

right?

Show Information
Source MediaTV Series
Season & EpisodeS1 E9
Timestamp02:14
TMDB ID262932