10 sentences

1. 我准备好上第一课了。

   wǒ zhǔn​bèi hǎo shàng dì yī kè le.

   I'm ready for my first lesson.

   Source: OpenSubtitles

2. 她的脸上第一次有了笑容。

   tā de liǎn shang dì​yī​cì yǒu le xiào​róng.

   She had a smile on her face for the first time.

   Source: CCMatrix

3. 世界上第一个网站是哪个？

   shì​jiè​shang dì yī ge wǎng​zhàn shì nǎ​ge?

   Which is the world's first website?

   Source: CCMatrix

4. 几名男子爬上第一辆卡车。

   jǐ míng nán​zǐ pá shàng dì yī liàng kǎ​chē.

   Several men climbed on the first truck.

   Source: United Nations

5. 湄公河是世界上第十二大河流。

   méi​gōng​hé shì shì​jiè shang dì shí'èr dà hé​liú.

   The Mekong River is the 12th largest river in the world.

   Source: CCMatrix

6. 她在课堂上第一次讲话时脸红了。

   tā zài kè​táng shang dì​yī​cì jiǎng​huà shí liǎn hóng le.

   She blushed when she spoke for the first time in class.

   Source: UM-Corpus: Spoken

7. 我是在一次晚会上第一次见到她的。

   wǒ shì zài yī​cì wǎn​huì shang dì​yī​cì jiàn dào tā de.

   I met her for the first time at a party.

   Source: CCMatrix

8. 你将会成为世界上第一个时光穿梭者。

   nǐ jiāng​huì chéng​wéi shì​jiè​shang dì yī ge shí​guāng chuān​suō zhě.

   You'll be the world's first time traveler.

   Source: OpenSubtitles

9. 第二次世界大战结束时，加拿大拥有世界上第三大海军。

   dì'èr​cì​shì​jiè​dà​zhàn jié​shù shí, jiā​ná​dà yōng​yǒu shì​jiè shang dì sān dà hǎi​jūn.

   At the end of the Second World War, Canada had the third-largest navy in the world.

   Source: CCMatrix

10. 一千多年前，中国成为了世界上第一个使用纸币的国家。

    yī qiān duō nián​qián, zhōng​guó chéng​wéi le shì​jiè​shang dì yī ge shǐ​yòng zhǐ​bì de guó​jiā.

    Over a thousand years ago, China became the first country in the world to use paper money.

    Source: CCMatrix