"融入她的世界"可以用英文表示为"immerse oneself in her world"或者"immerse oneself into her world"。

"Immerse"是一个动词，意思是"使沉浸于，使深深地涉足"。例如：

She immersed herself in the study of ancient civipzations. (她沉浸于古代文明的研究中。)
He immersed himself into the culture of the indigenous people. (他深深地涉足了土著文化。)

"Immerse"还有一个名词形式"immersion"，意思是"沉浸，深深涉足"。例如：

She experienced complete immersion in the foreign language and culture. (她完全沉浸在外语和文化中。)
The immersion program allowed him to fully understand the customs and traditions of the country. (这个浸入式项目使他能够完全理解该国的风俗和传统。)

希望这些信息对你有帮助！