n.五十几,五十年代( fifty的名词复数 );
英文例句/中文翻译:
In the fifties, many Italians spoke only local dialect
在20世纪50年代,许多意大利人只会说当地方言。
He retired in his fifties.
他在五十多岁时退休了。
He was a tubby little man in his fifties, with sparse hair
他50来岁,头发稀疏,身材矮胖。