weeknights 是 weeknight 的複數weeknight名詞1平日夜晚、上班日的晚上We rarely eat out on a weeknight because everyone is tired.平日晚上我們很少外食，因為大家都累了。形容詞1平日夜間的、上班日晚上的限定用法The restaurant offers a cheap weeknight menu for local families.這家餐廳為附近家庭提供便宜的平日晚間菜單。