例句與造句

1. The step by step switch to buses was completed on 16 April 1963 when the one and a half kilometer long tram service connecting the station to " Holy Ghost Square " ( " Heiligengeist Platz " ) was withdrawn . 16 April 1963 also marked the ending of trolleybus services in the city.
2. It's difficult to find step by step switch in a sentence. 用step by step switch造句挺難的