fifty

名词 fifty:

1. the cardinal number that is the product of ten and five
   同义词：50, L
2. a United States bill worth 50 dollars
   同义词：fifty dollar bill

形容词 fifty:

1. being ten more than forty
   同义词：50, l

1. The World Cup final is being transmitted live to over fifty countries.
   世界杯决赛现在正向五十多个国家现场转播。
2. The number of tigers has reduced abruptly in the last fifty years.
   在过去的五十年里，老虎的数目锐减。
3. There are more than fifty workers in this workshop.
   这个车间里有五十多个工人。
4. These people who were young fifty years back are now gray haired.
   50年前的年轻人，现在已经白发苍苍了。
5. My mother is fifty years old.
   我母亲已经五十岁了。

fif.ty

n.（名词）
The cardinal number equal to 5 × 0.
五十：等于5×0的基数
fifties
fifties
Often Fifties The decade from 50 to 59 in a century.
常作 Fifties 五十年代：在一个世纪中从50年到59年的十年
A decade or the numbers from 50 to 59:
五十到五十九：从五十到五十九之间的数字或五十到五十九岁之间：
例句：
They began playing golf in their fifties. With the sunshine, the temperature reached the fifties.
他们在五十几岁时开始打高尔夫球的。在阳光照射下温度达到了五十几度

来源：
Middle English fifti
中古英语 fifti
from Old English foftig * see penk we
源自 古英语 foftig *参见 penk we

【引伸】
fif.ty
adj.（形容词）
pron.（代词）