例句與造句

1. In another part of the Kill Van Kull, Weeks Dredging and Contracting crews failed to scoop up the rock with a clamshell dredge, and even multiple jabs with a 20-ton spike could not break it up.
2. It's difficult to find clamshell dredging in a sentence. 用clamshell dredging造句挺難的