guard rail
noun [ C ] uk/ˈɡɑːd ˌreɪl/ us/ˈɡɑːrd ˌreɪl/
护栏，扶栏
a bar along the edge of something steep, such as stairs or a cliff, to prevent people from falling off
| 单词 | guard rail |
| 释义 | guard rail noun [ C ] uk/ˈɡɑːd ˌreɪl/ us/ˈɡɑːrd ˌreɪl/ 护栏，扶栏 a bar along the edge of something steep, such as stairs or a cliff, to prevent people from falling off |
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