请问哪里错了It can be difficult to learn Tibetan.

请问哪里错了It can be difficult to learn Tibetan. 请问为什么it can be difficult to earn enough money for a family t is it difficult to learn Japanese? It's very difficult to learn English well,but you can't___.a Hahaha,I want to learn Chinese,but maybe it is difficult.Can 请问一下哪里错了 It will soon be her birthday .I have decided to buy It wasn’t easy to me to learn Chinese well.哪里错了 English is difficult.How can I learn it well LeArn English well,I need to use it.哪里错了 It is easy to learn English ,but it is difficult to learn it 英语翻译Oil can be used in many ways and it difficult to imagine it can be difficult to tell good information from bad谁能分析下这个