dozens of a lot of

This case spread to dozens hundred, a lot of people came there to get married with the help of Valentine.(人们一传十，十传百，很多人来到这里，在瓦伦丁的帮助下结成伴侣。)

Professor Salmon, who reviewed dozens of studies into the effect of birth order for her book The Secret Power of Middle Children, said: 'As children, middles have to wait a lot.(萨尔蒙教授在完成《排行中间孩子的神秘力量》一书时，对几十个家庭进行了跟踪研究，以探知家中排行会对孩子成长产生何种影响。)

Dozens of airports are adopting the technology, but the process requires a lot of installation and training.(数家机场正在引进这项技术，但这一过程需要大量安装操作操作和培训工作。)