不得不

例句

• wǒ我bù不dé得bù不jiā加bān班 。

  I have no choice but to work overtime.

• yīn因wèi为tū突rán然xià下yǔ雨 ，wǒ我men们bù不dé得bù不tí提qián前jié结shù束 。

  Because it suddenly rained, we had to end early.

用法