I will return on the 29th.

　　我29日回来。

　　A I’ll go back to London with her, but I’ll be back in Beijing pretty soon.

　　A 我将和她一起回伦敦，但是我很快会再回北京。

　　B How long will you be away?

　　B 你要离开多长时间？

　　A Back in London? About ten or eleven days. Less than two weeks.

　　A 回伦敦吗？大约10天或者11天。不超过两周。

　　B So when are you back exactly?

　　B 那么你确切哪天回来？

　　A I will return on the 29th.

　　A 我29日回来。

　　B Oh, that’s not long.

　　B 哦，时间不长。

　　Notes 注释

　　1 You can use the word back / back in various ways when you talk about coming and going to places, e.g. I’ll go back to London with her / I’ll go back to London with her; I’ll be back in Beijing soon / I’ll be back in Beijing soon; I will come back to the hotel this evening / I will come back to the hotel this evening. To come back / come back or go back / go back means to return / to return.

　　当你在谈论去某地或者从某地返回时，你可以使用单词back /回来的多种用法，例如I’ll go back to London with her / 我将和她一起回伦敦: I’ll be back in Beijing soon / 我很快就回北京: I will come back to the hotel this evening / 我今晚将回旅馆。 To come back / 回来 go back / 回去意思是 to return / 返回。

　　2 Remember the way of using numbers, especially for dates:

　　记住使用数字的方法，尤其是日期的使用方法：

　　- 21st: twenty-first / 21日26th: twenty-sixth / 26日

　　- 22nd: twenty-second / 22日 27th: twenty-seventh / 27日

　　- 23rd: twenty-third / 23日 28th: twenty-eighth / 28日

　　- 24th: twenty-fourth / 24日 29th: twenty-ninth / 29日

　　- 25th: twenty-fifth / 25日30th: thirtieth / 30日