Don’t + v. ↔ No + n.
| Don't + v. 禁止动作 | No + n. 不允许某个事物或概念 |
|---|---|
| Don't eat too much candy.（不要吃太多糖果。） | No smoking allowed in this area.（本区域禁止吸烟。） |
| Don't forget to call me.（别忘了给我打电话。） | No pets allowed in the building.（楼内不允许携带宠物。） |
| Don't smoke! 禁止吸烟 | No smoking! 不要吸烟 |
| Don't turn left.禁止左转 | No left turn.不许左转 |
| Don't turn right.禁止右转 | No right turn.不许右转 |
| Don't make a U-turn.禁止调头 | No U-turn.不准调头 |
| Don't park.禁止停车 | No parking.不准停车 |
结论：Don't 否定动词，No 否定名词！
Don't 语气更强烈一些，可翻译为：不准; No 语气弱一点，可翻译为：不要