例句與造句

1. There were 19 fixed spans and a swing section providing two 60 feet long navigation openings.
2. Work continued on the navigation, with the first section from Heybridge Basin to Little Baddow opening in April 1796 and the navigation opening throughout on 3 June 1797.
3. It's difficult to find navigation opening in a sentence. 用navigation opening造句挺難的