辅助交通工具 meaning in English

supplementary mode of transport

In the inner harbour , they are a supplementary mode of transport to cross - harbour buses and the mtr
港内交通方面，渡轮则是隧道巴士和地铁以外的辅助交通工具。
In the inner harbour and the new towns , ferries offer a supplementary mode of transport to the buses and railways
渡轮在港内和新市镇提供服务，作为巴士和铁路以外的辅助交通工具。
These were supplemented by kaitos , which were local village ferry services licensed to serve remote coastal settlements
此外， “街渡”也作为辅助交通工具，专为偏僻的沿海村落提供服务。