metaphysical doctrine

例句：

1. 1.The philosopher's view on life is quite metaphysical.
   这位哲学家对生活的看法相当形而上学。
2. 2. Metaphysical questions often require a deep understanding of the subject matter.
   形而上学的问题通常需要对主题有深入的理解。
3. 3.The metaphysical nature of reality has puzzled scientists for centuries.
   现实的本质是形而上学，科学家们已经困惑了好几个世纪。