线上

【化】 on-line

1. 我们出发时，太阳正在地平线上。
   The sun was on the horizon when we set off.
2. 那座巨大的岛屿隐隐约约浮现在地平线上。
   The mountainous island loomed on the horizon.
3. 灯光在地平线上闪烁着。
   The lights were blinking on the horizon.
4. 鸟栖息在电线上。
   The bird perched on the electric wires.
5. 转辙轨，渡线使火车从一条铁路线转到另一条铁路线上的短的连接轨道
   A short connecting track by which a train can be transferred from one line to another.

上的英语翻译：