五月份有31天。
The park is open from 1 May to 31 October.
公园从5月1日到10月31日开放。
He called from Washington, having been there for 31 hours straight.
他从华盛顿打来了电话，他已在那里连续呆了31个小时了。
I'm nearly 31 and it's about time I had something to show for my time in my job.
我快三十一岁了，该是我在工作中的付出收获成果的时候了。
It's hot, and as for Celsius right now, I think it's about 31 degrees.
现在很热，按摄氏度算的话，我认为得有31度。
English is a base-10 or decimal language, as evidenced by words like 14 and 31.
英语是一种以十为基数，或者说是十进制的语言，十四和三十一这样的单词证明了这一点。
On December 31, a bomber in Baqouba detonated her suicide vest close to a police patrol, wounding five policemen and four civilians.
在12月31号，巴库巴的一名炸弹袭击者在一个警察巡逻队附近引爆了她的自杀式炸弹背心，造成5名警察和4名平民受伤。
The closing date for entries is 31 March.
参赛作品的截止期是3月31日。
The money is not payable until January 31.
这钱要到1月31日才可支付。
The modern Russian alphabet has 31 letters.
现代俄语字母表有31个字母。
The closing date for entries is December 31.
参赛作品提交的截止日期是12月31日。
Friday 31 July 1925 henceforth became known as 'Red Friday'.
1925年7月31日这个星期五从此以后就称为“红色星期五”。
At present only 31 percent of the population has access to digital television.
目前仅有31%的人可以收看数字电视。
This free programme runs from July 1 to August 31.
这个免费的项目从7月1日开始，到8月31日结束。
It started its full-scale work on July 31, 2020.
它于2020年7月31日开始全面工作。
It will last from October 1, 2021 to March 31, 2022.
它将从2021年10月1日持续到2022年3月31日。
China's "Sky Eye" is open to the world since March 31.
中国的“天眼”自3月31日起向全世界开放。
On August 5, the number of postcards exchanged by members topped 31 million.
8月5日，会员交换的明信片数量突破了3100万张。
Now, the 31-year-old woman owns a factory that produces makeup products of her own brand.
现在，这位31岁的女性拥有一家生产自己品牌化妆品的工厂。
On January 31, a musher named Seppala had to cross a frozen body of water called Norton Sound.
1月31日，一位名为塞帕拉的赶狗人必须穿越一个叫诺顿湾的冰冻水域。
The latest expo is going to be held in Dubai from October 1, 2021 to March 31, 2022.
最新一届世博会将于2021年10月1日至2022年3月31日在迪拜举行。
It's reported that 31 of the brave young men were killed in a big forest fire in Sichuan.
据报道，四川的一场大型森林火灾中，有31名勇敢的年轻人牺牲。
He passed away on October 31, 2009 at the age of 98, but all the Chinese will remember him forever.
他于2009年10月31日去世，享年98岁，但所有中国人都会将他铭记于心。
World Wetlands Day came from the Convention on Wetlands signed in Iran, China joined the convention on July 31, 1992.
世界湿地日源起于在伊朗签署的《湿地公约》，中国在1992年7月31日加入了该公约。
When the tiny creature arrived on January 31, she became the 40th black rhino to be born at the reserve.
当这只小家伙在1月31日出生时，她成为了在该保护区出生的第40头黑犀牛。
That is 31% more than 15 years ago, and enough ice melt to put Switzerland under 7.2 meter of water each year.
这比15年前高出31%，每年融化的冰足以使瑞士淹没在7.2米的水下。
Normally, male grey seals live to be around 25 years old in the wild, but under the good care of the organization, Yulelogs just turned 31.
通常情况下，野外的雄性灰海豹能活到25岁，但在该组织的悉心照料下，Yulelogs 刚满31岁。
Turn to page 31 of the pupil's book.
翻到学生用书第31页。
Turn to page 31 of the pupil's book.
翻到学生用书第31页。
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