斯し界かい

noun

this field; this subject; this area

Formal, somewhat literary term used to refer to one's own field of expertise or the subject under discussion. Often used in academic or professional contexts.

• 斯し界かいの権けん威いとして知しられる先せん生せいをお招まねきしました。

  We have invited a teacher who is known as an authority in this field.

• 斯し界かいの発はっ展てんに貢こう献けんしたいと考かんがえています。

  I hope to contribute to the development of this field.