tā / shuō / zhe / shuō / zhe / jiù / chě / yuǎn / le / kāi / shǐ / jiǎng / zì / jǐ / de / lǚ / xíng / jīng / lì

他说着说着就扯远了，开始讲自己的旅行经历。

As he talked, he went off on a tangent and began describing his travels.