lip high line

例句：

1. 1. The painter carefully painted the high line on the wall.
   画家仔细地在墙上画了高线。
2. 2.The engineer designed a high line to prevent the flood.
   工程师设计了一条高线来防止洪水。
3. 3.The construction workers were working on the high line during the construction of the bridge.
   建筑工人在建造桥梁的过程中，正在处理高线问题。