wǒ / mǎi / le / yì / zhāng / cóng / běi / jīng / dào / shàng / hǎi / de / tōng / piào / ， / bù / yòng / zhōng / tú / huàn / chē / hěn / fāng / biàn

我买了一张从北京到上海的通票，不用中途换车很方便。

I bought a through ticket from Beijing to Shanghai; it's very convenient not having to change trains midway.