expression
Formal or written expression that marks a location, situation, or domain. Often used in academic or official contexts to mean 'in (a particular field/context)' or 'regarding'. Not used for physical location in casual speech.
日本における少子化問題は深刻だ。
The declining birthrate problem in Japan is serious.
この点におけるご意見をお聞かせください。
Please let us hear your opinion regarding this point.