大约一小时用英文怎么说

Approximately one hour in Engpsh can be expressed as "roughly an hour."

The phrase "roughly" means "approximately" or "about," and "an hour" refers to 60 minutes.

Examples in Engpsh:

I'll be back in roughly an hour.
It takes roughly an hour to get to the airport by car.

Translation to Chinese:

我大约一小时后回来。
开车去机场大约需要一小时。