How to say "之前一直和他单线联系" (zhī qián yì zhí hé tā dān xiàn lián xì) in Chinese dialogue

zhī之qián前yì一zhí直hé和tā他dān单xiàn线lián联xì系

I had a single-line contact with him before.

Idioms & Colloquial Expressions
INTERACTIVE SCRIPT TIMELINE
LINE 0103:52
dài代hào号jiào叫cáng藏fēng锋

“codename "Cangfeng."”

LINE 0203:54
PLAYING SCENE
zhī之qián前yì一zhí直hé和tā他dān单xiàn线lián联xì系

“I had a single-line contact with him before.”

LINE 0303:57
cáng藏fēng锋

“Cangfeng?”

Show Information
Source MediaTV Series
Season & EpisodeS1 E14
Timestamp03:54
TMDB ID281392 →