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高速公路
A freeway is a major road that has been specially built for fast travel over long distances. Freeways have several lanes and special places where traffic gets on and leaves.
例句
The speed limit on the freeway is 55mph.
高速公路限速每小時 55 英里。
...Boston's freeway system.
波士頓的高速公路系統(tǒng)