名词
中文翻译：支持线
同义词：
['supporting bar', 'support line', 'supporting bar']
例句：
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1.The engineer drew a supporting line on themap to indicate the route.
工程师在地图上画了一条支撑线来指示路线。
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2.The scientist used a supporting line to measurethe length of the beam.
科学家用一条支撑线来测量梁的长度。
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3. The constructionworkers used supporting lines to secure the scaffolding.
建筑工人使用支撑线来固定脚手架。