for·ty-nin·er
noun/ˌfɔːti ˈnaɪnə(r)/
/ˌfɔːrti ˈnaɪnər/
- any of the people who went to California to look for gold during the Gold Rush of 1849
四十岁：在1849年淘金热期间去加利福尼亚寻找黄金的任何人 - the Forty-Niners[plural] the popular name for the San Francisco professional football team
四十岁：旧金山职业橄榄球队的通称