For me, reading books is more helpful. When you read, you can really improve your vocabulary and reading skills. Books usually have more details than videos, so you can learn more about a topic. Also, you can read at your own speed and go back to difficult parts if you need to. Plus, you don't need the internet or a phone, so you can read anywhere.
对我来说,阅读书籍更有帮助。当你阅读时,你可以真正提高你的词汇量和阅读技能。书籍通常比视频有更多细节,所以你可以学到更多关于一个主题的知识。此外,你可以按照自己的速度阅读,如果需要还可以回过头去复习难懂的部分。而且,你不需要网络或手机,所以你可以在任何地方阅读。