mishear

1. Nonsense, you must have misheard.
   瞎说，你准是听错了。
2. Was she asking for a lift? I must have misheard her/what she was saying.
   她是要求搭便车吗? 我一定是听错[她的话]了。

mis.hear

v.tr.intr.（及物动词和不及物动词）
mis.heard[-hôrd.] mis.hear.ing,mis.hears
To hear wrongly; misunderstand.
误听；误解