To please the yelping dogs .

狗儿好欢叫着去捉。

Newspapers are dying ; the music industry is still yelping about itunes ; book publishers think they are next .

报刊业正在没落；音乐行业仍然对itunes的盛行叫苦不迭；出版商相信下一个遭殃的就是他们。

Cesar wheeled and threw another ball , in the opposite direction , and then a third , and then a fourth , until there were so many balls in the air and on the ground that the pack had turned into a yelping , howling , leaping , charging frenzy .

西泽又往反方向发了一个球，然后第三个球，第四个，直到空中飞着地上滚着很多的球，所有的狗都咆哮着，吠叫着，跳跃着，狂热着。

Down the corridors outside the blue , green , yellow , purple , orange , red rooms a kind of choreography of greeting is taking place . One by one the children tumble out , yelping greetings at the women waiting for them .

走廊里蓝色、绿色、黄色、紫色、橙色、红色的教室外面，妈妈和保姆们开始集体大欢迎，孩子们一个接一个地蜂拥而出，呼喊着迎向那些等待他们的女人们。