He shows a flashing light in his hand, as strange sounds shift and alter to each light.

他手里拿着一盏闪光灯，奇怪的声音随着每盏灯的变化而变化。

Those are some of the front to back sound shifts it, at, uh, or it, uh, or ite, ow, that you will encounter when you're learning irregular verbs in English.

这些是你在学习英语不规则动词时会遇到的一些从前到后的声音转换 it, at, uh, or it, uh, or ite, ow。