例句與造句

1. The Sandinistas had acquired eight Soviet minesweeping boats, of which seven remained in 1993, but none is known to be in operating condition.
2. In the case of adopting the same double arrow blade structure as the conventional minesweeping boat, it was thought that the inner layer board thickness became 47 mm, but it is suppressed to 20 mm by this.
3. It's difficult to find minesweeping boat in a sentence. 用minesweeping boat造句挺難的