那就是我最迟要7点钟上路。

　　A：That means that I'll have to be on the road by 7 o'clock at the latest.

　　那就是我最迟要7点钟上路。

　　B: That's right.

　　对了。

　　同类问句：

　　Well, I'm not really sure. I have to be at Tianjin Harbour by 10 o'clock. You wouldn't know how long it takes to drive to Tianjin from the hotel, would you?

　　我不太确定，但我 10点必须到达天津港。您不知道从酒店开车到天津港要多少时间，对吗？

　　I would give it three and a half hours.

　　我想，要3个半小时。

　　That means I'll have to be on the road by six fifty at least

　　就是说我最晚也要在6点50分上路。

　　做个好梦

　　祝您睡个好觉！

　　A：Well, in that case, I'd like you to call me at 5:30.

　　如果那样的话，我想让您5点半叫我。

　　B: OK, so we will wake you up at 5:30 tomorrow morning. Good night, Mr. Smith. Have a good sleep!

　　好的.我们明早5点半叫醒您，晚安，史密斯先生。祝您睡个好觉！

　　同类问句：

　　Good night, sir. Sleep well and have pleasant dreams!

　　晚安，先生。睡好并做个美梦！

　　Good night, madam. Have a nice dream.

　　不客气。晚安，女士。祝您做个好梦。