18 sentences

1. 第一个字母是什么？

   dì​yī gè zì​mǔ shì shén​me?

   What's the first letter?

   Source: OpenSubtitles

2. 英语一共有26个字母。

   Yīng​yǔ yī​gòng yǒu26 gè zì​mǔ.

   The English alphabet has 26 letters.

   Source: Dong Chinese Dictionary

3. 阿尔法是第一个希腊字母。

   ā'ěr​fǎ shì dì​yī​gè Xī​là zì​mǔ.

   Alpha is the first letter of the Greek alphabet.

   Source: Dong Chinese Dictionary

4. 他能把这些字母反过来背。

   tā néng bǎ zhè​xiē zì​mǔ fǎn​guo​lái bèi.

   He can recite these letters backward.

   Source: Dong Chinese Dictionary

5. E是英语中最常用的字母。

   E shì Yīng​yǔ zhōng zuì cháng​yòng de zì​mǔ.

   E is the most common letter in the English language.

   Source: OpenSubtitles

6. 每个数字都对应一个字母。

   měi gè shù​zì dōu duì​yìng yī gè zì​mǔ.

   Each number corresponds to a letter.

   Source: Dong Chinese Dictionary

7. 谁想玩字母游戏？

   shéi xiǎng wán zì​mǔ yóu​xì?

   Who wants to play the alphabet game?

   Source: OpenSubtitles

8. 请把这些书按字母顺序排好。

   qǐng bǎ zhè​xiē shū àn zì​mǔ shùn​xù pái hǎo.

   Please arrange these books in alphabetical order.

   Source: Dong Chinese Dictionary

9. 英语中一共有五个元音字母。

   Yīng​yǔ zhōng yī​gòng yǒu wǔ gè yuán yīn zì​mǔ.

   There are five vowels in the English language.

   Source: Dong Chinese Dictionary

10. 请按字母顺序给这些单词排序。

    qǐng àn zì​mǔ shùn​xù gěi zhè​xiē dān​cí pái​xù.

    Please sort these words alphabetically.

    Source: Dong Chinese Dictionary

11. 纽是希腊字母表中的一个字母。

    niǔ shì Xī​là zì​mǔ​biǎo zhōng de yī gè zì​mǔ.

    Nu is a letter in the Greek alphabet.

    Source: Dong Chinese Dictionary

12. 斐是希腊字母表中的第21个字母。

    fěi shì Xī​là zì​mǔ​biǎo zhōng de dì21 gè zì​mǔ.

    Phi is the 21st letter of the Greek alphabet.

    Source: Dong Chinese Dictionary

13. 所有的档案都已按字母顺序编排好了。

    suǒ​yǒu de dàng'àn dōu yǐ àn zì​mǔ shùn​xù biān​pái hǎo le.

    All the files have been arranged in alphabetical order.

    Source: Dong Chinese Dictionary

14. 他在笔记本上写下了一个希腊字母凯。

    tā zài bǐ​jì​běn shàng xiě​xià le yī gè Xī​là zì​mǔ kǎi.

    He wrote down the Greek letter Chi in his notebook.

    Source: Dong Chinese Dictionary

15. 这本教材的词汇是按照字母顺序排列的。

    zhè běn jiào​cái de cí​huì shì àn​zhào zì​mǔ shùn​xù pái​liè de.

    The vocabulary in this textbook is arranged alphabetically.

    Source: Dong Chinese Dictionary

16. 我们可以通过置换这些字母来组成新词。

    wǒ​men kě​yǐ tōng​guò zhì​huàn zhè​xiē zì​mǔ lái zǔ​chéng xīn cí.

    We can form new words by rearranging these letters.

    Source: Dong Chinese Dictionary

17. 在极坐标系中，极点通常用字母O来表示。

    zài jí​zuò​biāo​xì zhōng, jí​diǎn tōng​cháng yòng zì​mǔO lái biǎo​shì.

    In a polar coordinate system, the pole is usually represented by the letter O.

    Source: Dong Chinese Dictionary

18. 在数学公式中，我们常用希腊字母套来表示常数。

    zài shù​xué gōng​shì zhōng, wǒ​men cháng​yòng Xī​là zì​mǔ tào lái biǎo​shì cháng​shù.

    In mathematical formulas, we often use the Greek letter tau to represent constants.

    Source: Dong Chinese Dictionary