| 我认为英语难，但有用 🇨🇳 | 🇬🇧 I think English is difficult, but it is useful | ⏯ |
| 我觉得英语很难，但有用 🇨🇳 | 🇬🇧 I find English difficult, but useful | ⏯ |
| 我认为俄语很难但很有趣 🇨🇳 | 🇷🇺 Я думаю, что русский язык трудный, но интересный | ⏯ |
| 为什么英语很难用 🇨🇳 | 🇬🇧 Why is English so difficult to use | ⏯ |
| 我认为英语很有趣 🇨🇳 | 🇬🇧 I think English is very interesting | ⏯ |
| 我认为它很难，但有趣 🇨🇳 | 🇬🇧 I think its hard, but its funny | ⏯ |
| 我认为数学比英语难得多 🇨🇳 | 🇬🇧 I think math is much more difficult than English | ⏯ |
| 我认为，俄语难却很有趣 🇨🇳 | 🇷🇺 Я думаю, что русский язык трудный, но интересный | ⏯ |
| 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 | ⏯ |
| 老师说他们有用。但我认为它很难 🇨🇳 | 🇬🇧 The teacher said they were useful. But I think its hard | ⏯ |
| 老师说他们有用。但我认为它很难 🇨🇳 | 🇬🇧 The teacher said they were useful.But I think its hard | ⏯ |
| 我认为人工智能很难，但是很有用 🇨🇳 | 🇬🇧 I think artificial intelligence is difficult, but its useful | ⏯ |
| 我的朋友唱名有一个困难他认为英语有点难 🇨🇳 | 🇬🇧 My friend sings a name there is a difficulty he thinks English is a little difficult | ⏯ |
| 他为什么喜欢语文，因为他认为英语很有用 🇨🇳 | 🇬🇧 Why does he like Chinese because he thinks English is very useful | ⏯ |
| 因为我认为英语是很有趣的 🇨🇳 | 🇬🇧 Because I think English is very interesting | ⏯ |
| 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 | ⏯ |
| 因为我认为英语是非常有趣的 🇨🇳 | 🇬🇧 Because I think English is very interesting | ⏯ |
| 我认为英语难，但有用 🇨🇳 | 🇬🇧 I think English is difficult, but it is useful | ⏯ |
| 我觉得英语很难，但有用 🇨🇳 | 🇬🇧 I find English difficult, but useful | ⏯ |
| 我认为人工智能很难，但是很有用 🇨🇳 | 🇬🇧 I think artificial intelligence is difficult, but its useful | ⏯ |
| 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 | ⏯ |
| 我认为数学是有用的 🇨🇳 | 🇬🇧 I think math is useful | ⏯ |
| 我认为相亲是有用的 🇨🇳 | 🇬🇧 I think dating is useful | ⏯ |
| 我认为数学比英语难得多 🇨🇳 | 🇬🇧 I think math is much more difficult than English | ⏯ |
| 英语很难，但是我必须学好它 🇨🇳 | 🇬🇧 English is difficult, but I must learn it well | ⏯ |
| 我认为数学课是有用的 🇨🇳 | 🇬🇧 I think math class is useful | ⏯ |
| 我不认为相亲有用 🇨🇳 | 🇬🇧 I dont think dating is useful | ⏯ |
| 英语是非常有用的 🇨🇳 | 🇬🇧 English is very useful | ⏯ |
| 我认为生物很容易，而且很有用 🇨🇳 | 🇬🇧 I think biology is easy and 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 | ⏯ |
| 所以，我认为它很有用 🇨🇳 | 🇬🇧 So, I think its useful | ⏯ |
| 我认为数学对我来说是困难的 🇨🇳 | 🇬🇧 I think math is difficult for me | ⏯ |
| 我觉得二月有点困难 🇨🇳 | 🇬🇧 I think February is a little difficult | ⏯ |