名词
中文翻译：拖线
同义词：
['trail', 'leadwire', 'trailing wire']
例句：
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1. The trailing wire was theweakest part of the fence.
拖线是篱笆中最薄弱的部分。
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2. The trailing wire had to be replaced before thestorm.
暴风雨来临前，必须更换拖线。
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3. The trailing wire was used toguide the horses through the field.
拖线用于引导马匹穿过田野。