white line

• 画在路面上的线，通常为白色，用于标示车道、道路边缘或行驶方向。非正式用法中也指可卡因。

A painted line on a road surface, typically white, used to mark lanes, edges, or traffic directions. Also used informally to refer to cocaine.

1. Road markingA2formal

   A painted white line on a road used to separate lanes, indicate edges, or regulate traffic.

   白色标线

   • Stay within the white lines when driving on the highway.
   • The white line on the side of the road marks the shoulder.
   • Double white lines mean you cannot overtake.

2. Cocaine (slang)C1slang

   A slang term for a line of cocaine, referring to its appearance.

   可卡因（俚语）

   • He was caught snorting a white line at the party.
   • The movie showed a character preparing a white line on a mirror.
   • Using white lines is illegal and dangerous.