This is a 45-mile-per-hour zone.

这里的限速是45英里每小时。

youdao

Police say Stallworth was going about 50 miles an hour in a 40-mile-an-hour zone.

警方则说斯到沃斯在限速每小时40英里的地方开车时速达到50英里。

youdao

On the highway between Sutherland and Engadine, a 90km hour zone, with the music blaring and only my off key singing to keep me company; I decided to change lanes as the exit was coming up.

从sutherland 到engadine的高速公路限速每小时90公里，一路上只听得到刺耳的音乐声和我那跑了调的歌声。 因为就快要下高速公路，所以我决定要换个车道了。

youdao

It's illegal like going 60 on a 55-mile-an-hour zone is illegal.

NPR: Getting Paid Off the Books in America

Michele must coordinate the work of photographers across a 24-hour time zone.

FORBES: Magazine Article

With about 40, 000 vehicles an hour driving into the toll zone, the network will have to be able to cope with high volumes.

BBC: Colt gets London car toll contract