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Từ điển Oxford Advanced Learner 8th
guard rail
ˈguard rail [guard rail guard rails] BrE NAmE noun 1. a rail placed on the edge of a path, a ↑cliff or a boat to protect people and prevent them falling over the edge 2. (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 See also: ↑crash barrier
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