例句 /

A mass poultry cull stopped the outbreaks by March 2004, by which time 23 people had died.

A mass poultry cull stopped the outbreaks by March 2004, by which time 23 people had died.

2004年三月一场大的家禽筛选阻止了禽流感的爆发,截至此时已有23人死亡。