| 1. | Hold your head up and keep your back straight .
请把头抬起来，腰直起来。 |
| 2. | Come right around this way . keep your back straight
向这个方向转一下，后背挺直 |
| 3. | Then a long curve left leads to a back straight
接下来向左转长长的弯道，连着一条直道 |
| 4. | " eva always wants me to keep my back straight . .
“爱娃总是要我挺直背. . |
| 5. | Come on . split your man . back straight , butt down
真是的。挡住你的人背挺直，屁股放低 |
| 6. | She held her head erect and her back straight
她昂着头，把背挺得笔直。 |
| 7. | " eva always wants me to keep my back straight
“爱娃总是要我挺直背 |
| 8. | You should keep your back straight .
你应该把后背挺直。 |
| 9. | Keep your back straight . do not arch your back which may cause back pain
不要弯曲背部，保持背部挺直，以防背痛。 |
| 10. | Straddle : bend at the knees and keep the back straight , then straighten up
扎马:屈曲膝盖成半蹲姿势，再站直可以加强大腿肌肉 |
