中核

1. Origins, structure, and basic meaning

• Structure: 中核 (ちゅうかく) is a noun for the core or central element of an organization or plan.
• Basic usage: It describes people playing central roles or a system positioned at the core of a plan.
  • 若手の三人が開発チームの中核を担う。 — Three young employees play central roles on the development team.
  • この制度は計画全体の中核に位置する。 — This system forms the core of the entire plan.

2. Common pitfalls and similar expressions

• Central role and position
  • 中核を担う means taking responsibility for a core role, while 中核に位置する places something at the center of a larger structure.