| 我认为英语难,但有用  🇨🇳 | 🇬🇧  I think English is difficult, but it is useful | ⏯ | 
| 我认为英语难但有用  🇨🇳 | 🇬🇧  I think English is difficult but useful | ⏯ | 
| 我觉得日语很难  🇨🇳 | 🇯🇵  日本語は難しいと思います | ⏯ | 
| 我觉得英语好难呀  🇨🇳 | 🇬🇧  I find English so difficult | ⏯ | 
| 为什么英语很难用  🇨🇳 | 🇬🇧  Why is English so difficult to use | ⏯ | 
| 我觉得英文好难  🇨🇳 | 🇬🇧  I find English difficult | ⏯ | 
| 我觉得很难过  🇨🇳 | 🇬🇧  I feel very sad | ⏯ | 
| 我很难用英语与人交流  🇨🇳 | 🇬🇧  It is difficult for me to communicate with people in English | ⏯ | 
| 数学很难,但很有用  🇨🇳 | 🇬🇧  Mathematics is difficult, but it is very useful | ⏯ | 
| 我觉得你学英语  🇨🇳 | 🇬🇧  I think you are learning English | ⏯ | 
| 我发现英语很难  🇨🇳 | 🇬🇧  I find English difficult | ⏯ | 
| 我说英语很困难  🇨🇳 | 🇬🇧  It is difficult for me to speak English | ⏯ | 
| 我认为俄语很难但很有趣  🇨🇳 | 🇷🇺  Я думаю, что русский язык трудный, но интересный | ⏯ | 
| 发现英语很难  🇨🇳 | 🇬🇧  Its hard to find English | ⏯ | 
| 英语很难,但是我必须学好它  🇨🇳 | 🇬🇧  English is difficult, but I must learn it well | ⏯ | 
| 他们觉得很难  🇨🇳 | 🇬🇧  They find it hard | ⏯ | 
| 但我觉得很完美  🇨🇳 | 🇬🇧  But I think its perfect | ⏯ | 
| 但是我觉得很虚  🇨🇳 | 🇰🇷  그러나 나는 매우 헛된 느낌 | ⏯ | 
| 我发现英语很困难  🇨🇳 | 🇬🇧  I find English difficult | ⏯ | 
| 我认为英语难但有用  🇨🇳 | 🇬🇧  I think English is difficult but useful | ⏯ | 
| 我发现英语很困难  🇨🇳 | 🇬🇧  I find English difficult | ⏯ | 
| 我觉得英文好难  🇨🇳 | 🇬🇧  I find English difficult | ⏯ | 
| 我发现英语很难  🇨🇳 | 🇬🇧  I find English difficult | ⏯ | 
| 我认为英语难,但有用  🇨🇳 | 🇬🇧  I think English is difficult, but it is useful | ⏯ | 
| 我觉得英语好难呀  🇨🇳 | 🇬🇧  I find English so difficult | ⏯ | 
| 我觉得数学虽然难,但是有挑战性  🇨🇳 | 🇬🇧  I find math difficult, but challenging | ⏯ | 
| 我认为人工智能很难,但是很有用  🇨🇳 | 🇬🇧  I think artificial intelligence is difficult, but its useful | ⏯ | 
| 我发现学好英语不容易  🇨🇳 | 🇬🇧  I find it difficult to learn English well | ⏯ | 
| 数学很难,但很有用  🇨🇳 | 🇬🇧  Mathematics is difficult, but it is very useful | ⏯ | 
| 他很困难,但是很有趣,很有用  🇨🇳 | 🇬🇧  He is difficult, but it is interesting and useful | ⏯ | 
| 英语很难,但是我必须学好它  🇨🇳 | 🇬🇧  English is difficult, but I must learn it well | ⏯ | 
| 老师说它有用,但我认为它是困难的  🇨🇳 | 🇬🇧  The teacher said it was useful, but I thought it was difficult | ⏯ | 
| 老师说他们有用,但我认为它很难  🇨🇳 | 🇬🇧  The teacher said they were useful, but I thought it was difficult | ⏯ | 
| 老师说它很有用,但是我认为它很难  🇨🇳 | 🇬🇧  The teacher said it was useful, but I thought it was difficult | ⏯ | 
| 老师说它很有用,但我认为它很困难  🇨🇳 | 🇬🇧  The teacher said it was useful, but I thought it was difficult | ⏯ | 
| 我发现这本书很有用  🇨🇳 | 🇬🇧  I find this book very useful | ⏯ | 
| 我发现真正学好英语太难了  🇨🇳 | 🇬🇧  I find it too difficult to really learn English well | ⏯ | 
| 他认为,它虽然难,但很有用,她喜欢他  🇨🇳 | 🇬🇧  He thought it difficult, but useful, and she liked him | ⏯ |