吃透英语课本，提升在校竞争力
num. 第四十
adj. 第四十的；四十分之一的
复数：fortieths
The office ④on the fortieth floor ③of a skyscraper ②in the center ①of New York is the world he works in.
设在位于①纽约市②中心③一座摩天大楼④第四十层楼里的⑤那间办公室，就是他工作的小天地。
It's very common for runners to have anxiety dreams about a race, whether it's their first or their fortieth.
这都是赛跑者共有的关于一场比赛焦虑的幻想，无论这是他们的第一场还是第四十场赛事。
They celebrated their fortieth anniversary.
他们庆祝了他们的四十周年纪念日。
She is celebrating her fortieth birthday today.
她今天在庆祝她的四十岁生日。
