您要查找的是不是：
- 您这是第一次订货吧? Is this your first order?
- 您这是第一次来美国吗? Is this your first visit to the U. S. ?
- 这是我的桌子,和床连在一起,我想大多数人应该是第一次看到吧! This is my desk and it is connect with the bed, I think you must see it for the first time.
- 我猜想，这是您第一次参观这个交易会吧。 This is your first visit to the fair,I presume.
- 这是第一次证实一种基因会增加脑瘫的患病几率。 This is the first identification of a gene that increases susceptibility to cerebral palsy.
- 这是我第一次到这里，我一直盼望着来。 It's my first time bere and I've been looking forward to it.
- 没有，这是第一次。 No, this is my first trip here.
- 你这是第一次到三藩市吗? Is this your first visit to San Francisco?
- 这是我们第一次看到海洋。 It was our first view of the ocean.
- 看样子您是第一次来这。 It looks like you come here for the first time.
- 这是他第一次与男修道院院长见面。 This was the first time that he had met with the abbot.
- 这是您第一次来这儿旅行吧。 Is this your first trip here.
- 自从我学会下国际象棋以来，这是我第一次赢。 It was the first time I'd won since I'd learnt to play chess.
- 这是第一次的采访广播。 Here is the first interview broadcast.
- 这是您第一次来北京吗? Is this your first trip to Beijing?
- 这是一批有关第一次世界大战的文件。 It is a collection of documents with reference to the First World War.
- 这是您第一次到长沙吗? Is this your first visit to Changsha?
- 这是第一次，但我却是向往已久了。 It's my first time here and I've been looking forward to it.
- 这是您第一次来日本吗? Is this your first visit to Japan?
- 欢迎你们到合肥来，这是你们第一次访问中国吗? Welcome to Hefei. Is this your first trip to China?
