fifty

柯林斯詞典

1. NUM Fifty is the number 50. 50
2. N-PLURAL When you talk about the fifties, you are referring to numbers between 50 and 59. For example, if you are in your fifties, you are aged between 50 and 59. If the temperature is in the fifties, the temperature is between 50 and 59 degrees. 五十多
I probably look as if I'm in my fifties rather than my seventies. 我可能看起來像五十多歲，而不像七十多歲。
3. N-PLURAL The fifties is the decade between 1950 and 1959. 19世紀50年代
He began performing in the early fifties, singing and playing guitar. 他于50年代早期開始表演唱歌和吉他彈奏。

Although never married , they lived together as husband and wife for fifty years .
Although the film was made fifty years ago, it has lost none of its magic .
This car does about fifty miles to the gallon .
You should see her wardrobe - it's unbelievable - she's got about fifty pairs of shoes .
There are about fifty calories in an apple .