Correct

单线

/ shàn xiàn /
Strokes

Definition

single line

Example

As a Noun

single line/thread

1
Shànxiàn
单线
tiānxiàn
天线

single-wire antenna

2
Shànxiàn
单线
féngrèn
缝纫机

single-thread sewing machine

As a Noun

one-way (contact); single-line (link)

3
Guò
过去
shì
shànxiàn
单线
lián
联系

He had been my only contact.

As a Noun

single track

As a Noun

singlet