撰写英文留学广告语时，可以采用以下几种风格：
激励式：
激发潜在客户的梦想和热情。
"Are you dreaming of studying abroad and embarking on a new adventure？ Look no further!"
启发式：
强调留学带来的视野拓宽和多元文化体验。
"Explore the world, broaden your horizons - are you ready to embrace the challenge of studying abroad？"
承诺式：
突出留学机构和顾问的专业服务。
"We are here to guide you on your journey, turning your dreams into reality."
比喻式：
使用比喻手法，使广告语更具吸引力。
"Embark on a journey of discovery and growth - your future awaits beyond the classroom."
简洁明了：
直接传达留学的好处和机构的优势。
"Unlock your potential, achieve excellence - study abroad with us."
对仗式：
使用对仗结构，使广告语更加和谐。
"Dream big, achieve more - with our support, your future is limitless."
幽默式：
适当加入幽默元素，吸引年轻受众。
"Don't just study abroad, study to excel - we'll help you soar!"
权威式：
强调留学机构的权威性和专业性。
"With years of experience, we've helped thousands of students realize their dreams."
记得在撰写广告语时，要确保信息准确、吸引人，并且能够激发潜在客户的兴趣。同时，不要忘记包含留学机构的特点和优势，以及它们如何帮助客户实现留学梦想。