 |
| |||
| —连好几代 | |||
| for generations: 21 phrases in 12 subjects |
| Agriculture | 1 |
| Air defense | 1 |
| Automobiles | 2 |
| Aviation | 2 |
| Chemistry | 1 |
| China | 1 |
| Ecology | 1 |
| Electronics | 4 |
| Hydroelectric power stations | 1 |
| Technology | 3 |
| United Nations | 3 |
| Watchmaking | 1 |
|
| |||
| —连好几代 | |||
| for generations: 21 phrases in 12 subjects |
| Agriculture | 1 |
| Air defense | 1 |
| Automobiles | 2 |
| Aviation | 2 |
| Chemistry | 1 |
| China | 1 |
| Ecology | 1 |
| Electronics | 4 |
| Hydroelectric power stations | 1 |
| Technology | 3 |
| United Nations | 3 |
| Watchmaking | 1 |