The main force, core members, or principal resources of an organization or group; the primary strength or leading contributors.
主力選手が怪我で欠場し、チームは苦戦した。
The team struggled after its key players were sidelined by injuries.
この会社の主力商品はスマート家電だ。
This company's main product line is smart home appliances.
新規事業には主力メンバーを投入する予定だ。
They plan to assign core team members to the new business.
経済成長の主力は輸出産業である。
The driving force of economic growth is the export industry.