专线 zhuān xiàn

DEFINITIONS

  1. special-purpose phone line or communications link
  2. hotline
  3. special rail line (e.g. between airport and city)
  4. CL:條|条[tiao2]

CHARACTERS

专 zhuān
HSK 4
monopolize, take sole possession
线 xiàn
HSK 4
line, thread, wire; clue