你必須隨機應變。

You have to adapt to circumstances.

Source: Tatoeba

Sentence Composition

=1 你 nǐ you (informal, as opposed to courteous 您 nín)
=1 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
2 必須 bìxū
  1. to have to
  2. must
  3. compulsory
  4. necessarily
3 隨機應變 suíjīyìngbiàn to change according to the situation (idiom); pragmatic