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1·It's the first-ever meeting between leaders of the two countries.

这是有史以来两国领导人的第一次会晤。《柯林斯英汉双解大词典》

2·Xi'an celebrated the first-ever China Hanfu Day on April 18.

4月18日，西安庆祝了中国首个汉服节。

3·On May 28, the National People's Congress agreed China's first-ever Civil Code.

5月28日，全国人民代表大会通过了中国第一部民法典。

4·Xi'an celebrated the first-ever China Hanfu Day on April. There were catwalk shows (走秀) and traditional music concerts which were held by people wearing traditional Chinese clothing.

在4月，西安欢庆了第一个中国汉服节。汉服节上有时装秀和传统音乐会，人们在活动上穿着中国传统服装。

5·A company in India made the first-ever spoon that people can eat.

印度的一家公司制造了第一把人们可以吃的勺子。

6·Dangote is also the first-ever Nigerian billionaire.

同时，Dangote还是尼日利亚有史以来第一位亿万富翁。

7·In fact, he was sending the first-ever Twitter message.

然而事实上，他是在发送人类史上的第一条Twitter信息。

8·Saudi Arabia held its first-ever municipal elections in 2005.

沙特阿拉伯历史上第一次市政选举是在2005年。

9·Microsoft announced plans to offer its first-ever corporate bond.

微软宣布了有史以来第一次发行企业债券的计划。

10·So today, we're announcing the first-ever federal taxpayer receipt.

所以，今天我们发布了首份联邦纳税人税收收据。