| 词汇 | guard rail |
| 释义 | guard railBrE /ˈɡɑːd reɪl/ NAmE /ˈɡɑːrd reɪl/ noun a rail placed on the edge of a path , a cliffor a boat to protect people and prevent them falling over the edge 护栏；扶栏(NAmE ) (BrE ˈcrash barrier ) a strong low fence or wall at the side of a road or between the two halves of a major road such as a motorway or interstate（高速公路或州际公路上的）防撞护栏，防撞墙 |
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