1.
'--or twenty years hence---'
“——二十年后吧——”
2.
the last decades of the 19th century
十九世纪最后二十年
3.
The Research on Missionary Middle Schools in Guangdong in the 1920 s;
二十世纪二十年代广东教会中学研究
4.
She expected to stay in politics another fifteen to twenty years.
她希望在政界再呆十五年到二十年。
5.
20 Years' Meritorious Service Certificate
二十年优良服务奖状
6.
On December twenty-fifth every year.
每年的十二月二十五日。
7.
IN CELEBRATION OF THE TWENTY-FIFTH ANNIVERSARY OF THE OCTOBER REVOLUTION
祝十月革命二十五周年
8.
the first decade of the 21st century
二十一世纪最初十年
9.
February had 29 days last year.
去年二月有二十九天。
10.
A. He was born on February 22, 1732.
他出生于一七三二年二月二十二日。
11.
December is the twelfth month of the year.
十二月是一年中的第十二个月。
12.
The Preschool Education Reform in the Period of the 20s to 30s of 20th Century;
二十世纪二三十年代的幼稚教育改革
13.
An Investigation on Jangnan's Sock Industry in the 1920s and 1930s
二十世纪二三十年代江南织袜业考察
14.
Development of Uygur Twelve Muqam in the 1930s
二十世纪三十年代维吾尔十二木卡姆的发展
15.
She kept a diary for over twenty years.
她写日记已二十多年.
16.
My diaries cover twenty-five years.
我写日记长达二十五年。
17.
These mats will wear for 20 or 30 years.
这种草席能用二三十年。
18.
These mats will wear for 20 to 30 years.
这些草席能用二三十年。