the Forties

例句：

1. 1. The Forties were a time of great change and innovation in the United States.
   四十年代是美国一个重大变革和创新的时代。
2. 2. She was born in the Forties, so she has seen many changes over the years.
   她出生于四十年代，所以多年来见证了许多变化。
3. 3. In the Forties, people used to wear suits and ties for work.
   在四十年代，人们过去常穿西装打领带上班。