 |
| |||
| preformed section | |||
| |||
| precast segment | |||
|
预 制 段 : 33 phrases in 9 subjects |
| Air defense | 1 |
| Bridge construction | 6 |
| Business | 1 |
| Earth sciences | 1 |
| Economy | 1 |
| Finances | 1 |
| General | 1 |
| Technology | 20 |
| Textile industry | 1 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips