could not but

• 不得不 ...

could not but的用法和样例：

例句

1. 10000
   一万
2. He could not but look up to the sky and sigh deeply when his lifetime of frustrations passed through his mind.
   想起自己坎坷的一生，他不由仰天长叹。
3. That they were justified in this she could not but admit.
   她不得不承认，在这件事上他们是有道理的。