例句與造句

1. The "'Condor Shoestring "'( originally known as the "'Ast Special "'and the "'Mercury Air Shoestring "') was a Formula One Air Racing aircraft built by Carl and Vincent Ast to compete in the Cleveland National Air Races in 1949 . It was a highly streamlined mid-wing cantilever monoplane with fixed tailwheel undercarriage.
2. It's difficult to find mercury air shoestring in a sentence. 用mercury air shoestring造句挺難的