(形容詞) 截然不同的 (completely different)。
- Rachel is generous in giving help and night and day (=completely different) from any other student in her class. (瑞秋樂於助人，與她班上其他學生截然不同)
(副詞) 完全沒有，完全不，一點都不 (far from)。
- His work is night and day from (=far from) satisfactory. (他的工作一點都不令人滿意)