承诺

1. 我体谅你可能事先已另有承诺。
   I appreciate that you may have prior commitments.
2. 他们的承诺分文不值。
   Their promises are not worth a damn.
3. 你应当谨慎做出承诺。
   You should be careful when making a promise.
4. 他不愿做出任何承诺。
   He would not commit himself in any way.

承的英语翻译：

诺的英语翻译：