The choice of subject matter is irrelevant.

主题的选择不重要。

His choice of subject matter has been regarded as lowbrow.

他选择的主题被认为是浅薄的。

Her poems are modishly experimental in style and recondite in subject matter.

她的诗在风格上时尚朦胧，在主题上深奥难懂。

The subject matter was so technical as to be beyond the ken of the average layman.

该主题专业性太强，一般的外行人很难理解。

Angus's child-like paintings contrast starkly with his adult subject matter in these portraits.

安格斯孩子般的绘画和他这些肖像画里的成人主题对比鲜明。