for the first time

1. 現(xiàn)有大量關于第一次世界大戰(zhàn)的文獻。
   There is now extensive literature dealing with the First World War.
2. 第一次測量聲速是在什么時候？
   When did the first measurement of the speed of sound take?
3. 你第一次猜得對。
   Your first surmise was right.
4. 我與她的第一次會面的情景經(jīng)常出現(xiàn)在我的記憶中。
   My first meeting with her often recurs to my memory.
5. 這是她第一次懷孕。
   This is her first pregnancy.
6. 不久以后，他第一次就這一事件發(fā)表了公開聲明。
   Soon afterwards he made his first public statement about the affair.
7. 如果我沒記錯的話，我們第一次相遇是在紐約。
   We first met in New York, if my memory serves me.
8. 在第一次世界大戰(zhàn)中，我祖父駐守在法國北部前線。
   Grandfather was in the trenches during the First War.

第的英語翻譯：

一次的英語翻譯：