吴亦凡，大家熟悉的中国流行音乐人和演员。他给人们留下了深刻的印象，不仅因为他多才多艺的才华，还因为他被尊称为"大牛"。那么，为什么吴亦凡被称为大牛呢？

首先，吴亦凡的音乐才华非常出色。他在组合EXO期间，展现出了他独特的嘻哈风格和饶舌技巧。他与韩国音乐制作人Rykey（陈率琪）合作，推出了许多受欢迎的歌曲，如"综艺节目"和"Bad Girl"等。他的音乐风格新颖独特，让人耳目一新。

Translation:

Wu Yifan, well-known Chinese pop musician and actor. He has left a deep impression on people, not only because of his versatile talent, but also because he is referred to as "Da Niu" (Big Cow). So, why is Wu Yifan called Da Niu?

Firstly, Wu Yifan's musical talent is remarkable. During his time in the group EXO, he showcased his unique hip-hop style and rap skills. Collaborating with Korean music producer Rykey (Chen Shuaiqi), he released many popular songs such as "Variety Show" and "Bad Girl." His music style is fresh and unique, bringing a breath of fresh air.

其次，吴亦凡在演艺圈也有着非常突出的表现。除了音乐，他还参演了多部电影和电视剧，展现了他的演技和多样化的表演风格。他在电影《XXX：再见，祖国》中饰演主要角色，获得了很多好评。他的出色表演使他成为了备受关注的明星之一。

Translation:

Secondly, Wu Yifan has also made outstanding achievements in the entertainment industry. In addition to music, he has appeared in multiple films and TV dramas, showcasing his acting skills and diverse performance styles. He played a major role in the movie "XXX: Goodbye, Motherland," which received much praise. His excellent performances have made him one of the most talked-about stars.

此外，吴亦凡独特的时尚品味也是他被称为大牛的原因之一。他经常在各种时尚活动和红毯上展示出别具一格的穿搭风格。他的时尚造型充满个性和创新，成为了时尚指标和潮流的引领者。

Translation:

Furthermore, Wu Yifan's unique sense of fashion is also one of the reasons he is called Da Niu. He often showcases his distinctive style at various fashion events and red carpets. His fashion choices are full of personality and innovation, making him a fashion icon and trendsetter.

总之，吴亦凡被称为大牛不仅是因为他的多才多艺，还因为他在音乐、演艺和时尚方面的杰出表现。他的音乐才华、演技和时尚品味都让他成为了备受赞誉的艺人，并赢得了众多粉丝的喜爱和支持。

Translation:

In conclusion, Wu Yifan is called Da Niu not only because of his versatile talent, but also because of his outstanding performances in music, acting, and fashion. His musical talent, acting skills, and fashion taste have made him a highly acclaimed artist, winning the love and support of many fans.