two-line

These two lines coincide with each other.

这两条线相重合。

The two lines of bones are set perpendicular to one another.

这两排骨头相互垂。

79. either of two lines that connect a horse's harness to a wagon or other vehicle or to a whiffletree.

或两把马轭马车或其他交通马车上的绳子。