彼は社会の底辺で暮らす人々の声を記事にした。
He wrote about the voices of people living at the bottom of society.
競技人口の底辺を広げることがスポーツ振興の鍵だ。
Broadening the grassroots base of players is key to promoting the sport.
入社したばかりの頃は、組織の底辺で雑用ばかりしていた。
When I had just joined the company, I did nothing but odd jobs at the bottom of the organization.