「先生に大切な本を貸していただいた以上、難しくても読まなければと思います」ここで、「読まなければ」とはどう意味や文法ですか。「難しくて、読むわけにはいかない」ですか。

The Language Level symbol shows a user's proficiency in the languages they're interested in. Setting your Language Level helps other users provide you with answers that aren't too complex or too simple.

• Beginner

  Has difficulty understanding even short answers in this language.

• Beginner-Intermediate

  Can ask simple questions and can understand simple answers.

• Intermediate

  Can ask all types of general questions and can understand longer answers.

• Advanced

  Can understand long, complex answers.