unbind
verb [ T ] uk/ʌnˈbaɪnd/ us/ʌnˈbaɪnd/ unbound
解开（绳索）
to release someone or something from a rope, string, etc. that has been tying him, her, or it up
My hands were unbound and my blindfold removed. 我手上的绳子被解开了，我的眼罩也被拿掉了。
Synonym: release (MAKE FREE)
Opposite: bind (TIE/FASTEN)