water-line
中文翻譯：
【醫】 上水道, 上水管線英文解釋：
名詞 water-line:
- a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship同義詞：waterline, water line, water level
- a line marking the level reached by a body of water同義詞：water line, watermark