New Words：

motorway [ˈmoʊtərweɪ] n. （英国）高速公路
freeway [ˈfriːweɪ] n. （美国）高速公路
highway ['haiwei] n. 公路；高速公路

Sample Sentences：

Leave the motorway at the next exit.
The speed limit on the freeway is 55mph.
The motorway has been closed due to the thick fog.
You can see many warning signs along the motorway.

limit ['limit] v.限制；限量；限定

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