一定

Example sentences

• zhè这fēng封xìn信yīdìng一定yào要yòng用Yīngwén英文xiě写ma吗？
  Must this letter be written in English?
• wǒ我yǐwéi以为tā他yīdìng一定huì会kǎoshì考试hégé合格。
  I took it for granted that he would pass the exam.
• zhè这yīdìng一定shì是zuìhǎo最好de的fāngfǎ方法。
  This is definitely the best way.
• wǒ我wèishénme为什么yīdìng一定yào要nàme那么zuò做？
  Why do I have to do that?