dì / di / yí / shàng / cháng / tú / chē / jiù / biàn / chéng / le / kē / shuì / chóng / jiào / dōu / jiào / bù / xǐng

弟弟一上长途车就变成了瞌睡虫，叫都叫不醒。

As soon as my younger brother gets on a long-distance bus, he turns into a sleepyhead and cannot be woken up.