1、The first period first increased and then decreased.
在第一時間段，開始振幅增加，然后降低。

2、The first period witnessed the influence from Herbert Spencer and other Social Darwinists.
他創(chuàng)作的第一階段主要受赫伯特·斯賓塞及其他社會達爾文主義者的影響。

3、The first period is world history, but we didn't teach the lesson.
第一節(jié)是世界歷史，但我們沒上。

4、during the first period of his literary career
在他文學生涯的初期

5、The final two months were a miserable coda to the President's first period in office.
總統(tǒng)首屆任期的最后兩個月非常糟糕。

6、United's best chances of the first period came from corners.
曼聯(lián)上半場取得最好的機會來自角球。

7、The bell for the end of first period rang then.
第一節(jié)課結(jié)束的鈴聲響了。

8、Since its first period on Dec. 5, Letters Alive has been widely praised.
自12月5日播出第一集以來，《見字如面》這檔節(jié)目收到廣泛好評。