zài / zhè duàn / duì huà / lǐ / zuò zhě / yòng / āi / zhè ge / gǎn tàn yǔ / biǎo xiàn / rén wù / de / wú nài

在这段对话里，作者用“唉”这个感叹语表现人物的无奈。

In this dialogue, the author uses the exclamation “唉” to convey the character's helplessness.