您要查找的是不是：
- This is the first time I sold something I love it. 那是我第一次卖掉我最心爱的东西。
- This is the first time for me to come to China. 这是我第一次来中国。
- This is the first sequel book you've written. 这也是您有史以来的第一部续作。
- This is the first I've heard of it! 这可是我第一次听说这件事！
- This is the first asteroid sample return mission. 这是首个收集小行星样本的任务。
- This is the first time I have eaten dumplings. 我生平第一次吃饺子。
- This is the first Korean sentence that he learnt. 这是他学的第一句韩语。
- This is the first notable increase since 2001. 这是自从2001年后第一次显著的增长。
- This is the first phone with this capability. 这是第一本以电话能力.
- This is the first report about Styela canopus. 这是有关冠瘤海鞘化学成份研究的首次报道。
- This is the first time we have met. 我们是第一次见面。
- D: This is the first day of work, son. 儿子啊，今天是你第一天上班。
- This is the Colts' first trip to the big game since moving from Baltimore in1984. 这是小马队自从1984年离开巴尔的摩以后第一次打进决赛。
- I think this is the first time weve met, isnt it? 我想这是我们的第一次见面，对吗?
- This is the first NAC-like gene reported in maize. 本研究是有关玉米NAC转录因子基因的首次报道。
- This is the first baseman, and this is a pitcher. 这是第一个垒手。这是一个投手。
- This is the first time I have traveled to China. 这是我第一次来中国旅行。
- This is his first trip to Hebei. 这是他第一次来河北。
- This is the first Pullman Resort in China. 这是中国第一家铂尔曼度假酒店。
- No. this is my first trip abroad. 不经常，这是我第一趟出国旅行。
