That's because he didn't listen carefully in class
认真───earnest;上课───attend class;class begins
His job as England manager begins in earnest now his World Cup campaign is in motion.───现在世界杯足球赛的征战工作已经展开，而他作为英格兰队主教练的工作也真正开始了。
I could tell she spoke in earnest.───我看得出她是郑重其事地说的。
Ella was a pious, earnest woman.───埃拉是个虔诚、认真的女人。
He is deaf to your earnest advice.───他听不进你的忠言.
The combination of secular and religious earnest produced an age rich in popular devotion to God.───世俗安全和宗教热情的结合,产生了一个富于对上帝的大众化奉献的时代.
He was very earnest about going abroad.───他对于要出国这件事很认真.
Dear, I hope you can fall in an earnest love and won't be hurt again.───亲爱的, 希望你好好爱一次,不会再受伤!
Those whom I love I rebuke and discipline. So be earnest, and repent.───凡我所疼爱的,我就责备管教他. 所以你要发热心, 也要悔改.
It is my earnest wish that you use this money to continue you study of music.