How to say "秘密通讯的显影液" (mì mì tōng xùn de xiǎn yǐng yè) in Chinese dialogue

tōngxùndexiǎnyǐng

developer fluid for secret communications

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0111:46
xiǎo
píng
zhōng
shì

In the small bottle is

LINE 0211:46
PLAYING SCENE
tōng
xùn
de
xiǎn
yǐng

developer fluid for secret communications

LINE 0311:50
hái
yǒu
kāi
suǒ
yòng
de
zhǐ
huán
yào
shi

Also a ring key for picking locks

Show Information
Source MediaTV Series
Season & EpisodeS1 E24
Timestamp11:46
TMDB ID309609