1 | There is a sandy bottom to dredge. | |
2 | The depth of the river is maintained by dredging. | |
3 | Authorities are dredging a channel to allow river traffic to resume. | |
4 | They have to dredge the canal so that ships can use it. | |
5 | Yu from East Jiangzhou down to the Three Gorges, Three Gorges will begin dredging project. |