| 挑战性的 🇨🇳 | 🇬🇧 Challenging | ⏯ |
| 挑战困难 🇨🇳 | 🇬🇧 Difficulty challenging | ⏯ |
| 重力 🇨🇳 | 🇬🇧 Gravity | ⏯ |
| 有一些项目具有很大的挑战性 🇨🇳 | 🇬🇧 Some projects are challenging | ⏯ |
| 重心向前 🇨🇳 | 🇬🇧 Center of gravity forward | ⏯ |
| 我觉得数学虽然难，但是有挑战性 🇨🇳 | 🇬🇧 I find math difficult, but challenging | ⏯ |
| 不要失去你的重心 🇨🇳 | 🇬🇧 Dont lose your center of gravity | ⏯ |
| 重心向前 🇨🇳 | 🇬🇧 The center of gravity is forward | ⏯ |
| 重心在两腿之间 🇨🇳 | 🇬🇧 The center of gravity is between the legs | ⏯ |
| 同样的问候语重心长 🇨🇳 | 🇬🇧 The same greeting center of gravity is long | ⏯ |
| 重心保持住，不要左右乱窜 🇨🇳 | 🇬🇧 Keep the center of gravity, dont run around | ⏯ |
| 重心左右转换 🇨🇳 | 🇬🇧 The center of gravity shifts left and right | ⏯ |
| 木板太脆了，石头还是有挑战性的 🇨🇳 | 🇬🇧 The planks are so brittle that the stones are still challenging | ⏯ |
| 我最爱的科目是数学，我觉得数学虽然难，但是有挑战性 🇨🇳 | 🇬🇧 My favorite subject is math, Which I find difficult, but challenging | ⏯ |
| 重心放在两脚中间 🇨🇳 | 🇬🇧 The center of gravity is centered between the feet | ⏯ |
| 重心保持在两腿之间 🇨🇳 | 🇬🇧 The center of gravity is kept between the legs | ⏯ |
| 重心保持住，不要两个嘴 🇨🇳 | 🇬🇧 Keep the center of gravity, dont have two mouths | ⏯ |
| 但是一定要记住，重心要向前 🇨🇳 | 🇬🇧 But remember, the center of gravity is moving forward | ⏯ |
| 身体重心要偏左一点 🇨🇳 | 🇬🇧 The bodys center of gravity should be a little left | ⏯ |