| 1. | The foundation becomes solid after tamping .
打夯以后，地基就瓷实了。 |
| 2. | The site must be levelled before it is built upon .
建房前要先把地基垫平。 |
| 3. | The builders poured a solid foundation of cement .
建筑工人浇注了坚实的水泥地基。 |
| 4. | This house stands on firm ground .
这房子地基牢固。 |
| 5. | The wall panels were bolted to the concrete foundation .
墙壁镶板用螺栓安装在混凝土地基上。 |
| 6. | The lot is 100 feet deep .
地基进深100英尺。 |
| 7. | The foundations are giving .
地基陷下去了。 |
| 8. | The foundations have caved in .
地基下陷。 |
| 9. | The foundations have subsided .
地基下沉。 |
| 10. | The foundations have sunk .
地基下陷。 |
