"厌学表现" 用英语可以表示为 "disinterest in learning" 或 "a lack of motivation for learning." 这种表现可能是由于学生对学习内容感到无聊或没有兴趣，或者是因为他们感到学习对他们来说没有意义或没有用处。

下面是一些英文例句：

"He's been showing a lot of disinterest in learning lately. He just sits there and doesn't seem to be paying attention in class."
"She's been struggpng with a lack of motivation for learning. She used to be a top student, but now she's having trouble focusing and completing assignments."

中文翻译：

"他最近一直表现出对学习没有兴趣。他只是坐在那里，似乎在课堂上没有注意力。"
"她一直在努力克服对学习缺乏动机的困难。她曾经是一名优秀的学生，但现在她很难专心并完成作业。"

希望这些例句对你有帮助。