third rail
noun [ C ] uk/ˌθɜːd ˈreɪl/ us/ˌθɝːd ˈreɪl/
（用以给电力火车输入电流的）第三轨，接触轨
a metal bar, running parallel with train tracks, that supplies electricity to some types of train
| 词汇 | third rail |
| 类别 | 英译汉、英汉双解翻译词典 |
| 释义 | third rail noun [ C ] uk/ˌθɜːd ˈreɪl/ us/ˌθɝːd ˈreɪl/ （用以给电力火车输入电流的）第三轨，接触轨 a metal bar, running parallel with train tracks, that supplies electricity to some types of train |
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