vain读音_例句
vain 朗读
vain
音标：veɪn
vain翻译
vain双语用法和例句
相关单词
vestryman velocimeter vendible vii vibrational vitelline vel vociferation veins vellication ventriculoperitoneal violin valvulitis vacation venenate vitrifaction vineland valuative vermifuge verminate