conference lines

例句：

1. 1.The conference lines were drawn on the whiteboard.
   在白板上画了会议线。
2. 2. The company's conference lines are crucial for its success.
   公司的会议线对于其成功至关重要。
3. 3.The lines in the map indicate the conference rooms.
   地图上的线条表示会议室。