three days用法

three days用法 in three days与three days later的用法 three days later 的意思和用法、 与 in three days 的区别.three days ago three days,three-days,three-days'和three-day whole的用法.老师说过:三整天是all three days 或者three whole days 后来英语课本出了 three- day,three days,three days',three day's区别? Three Days好看吗 They_____london for three days. Only three days. three days收视率怎么样 three days ago three days 好看吗