Not so fast: Pointing to ports for illustration, Huang Ching-ho says that harbors have a constant need for silt dredging craft to clear the harbor bottoms and dump the stuff at sea.
廢土填海，慢慢來黃清和以港口為例，許多港口隨時須要抽沙船待命，濬深淤沙，然後載到外海丟棄。