| 好难哦 🇨🇳 | 🇬🇧 Its hard | ⏯ |
| 数学有点难 🇨🇳 | 🇬🇧 Math is a little difficult | ⏯ |
| 好难学 🇨🇳 | 🇬🇧 Its hard to learn | ⏯ |
| 我不喜欢数学，因为数学很难 🇨🇳 | 🇬🇧 I dont like math because it is difficult | ⏯ |
| 数学考试太难了 🇨🇳 | 🇬🇧 The math exam is too hard | ⏯ |
| 数学难，但很有趣 🇨🇳 | 🇬🇧 Math is difficult, but its interesting | ⏯ |
| 数学难但很有趣 🇨🇳 | 🇬🇧 Mathematics is difficult but interesting | ⏯ |
| 好难学呀 🇨🇳 | 🇻🇳 Thật khó để tìm hiểu | ⏯ |
| 数学对我来说很难 🇨🇳 | 🇬🇧 Mathematics is difficult for me | ⏯ |
| 数学很难，但很有用 🇨🇳 | 🇬🇧 Mathematics is difficult, but it is very useful | ⏯ |
| 这道数学题真难啊！ 🇨🇳 | 🇬🇧 This math problem is so difficult | ⏯ |
| 数学难，但是很有趣 🇨🇳 | 🇬🇧 Math is difficult, but its interesting | ⏯ |
| 数学难，但也很有趣 🇨🇳 | 🇬🇧 Mathematics is difficult, but its also very interesting | ⏯ |
| Mary喜欢数学。数学虽然难但是有趣 🇨🇳 | 🇬🇧 Mary likes math. Mathematics is difficult but interesting | ⏯ |
| 学外语好难 🇨🇳 | 🇷🇺 Трудно изучать иностранный язык | ⏯ |
| 我不喜欢数学，因为数学很难每周五都有数学课 🇨🇳 | 🇬🇧 I dont like math because its hard to have math every Friday | ⏯ |
| 难搞哦 🇨🇳 | 🇬🇧 Its hard | ⏯ |
| 难搞哦 🇨🇳 | 🇯🇵 大変だ | ⏯ |
| 难搞哦 🇨🇳 | 🇹🇭 มันยากมาก | ⏯ |