Word Network: 以内

期限 refers to a time limit, deadline, or expiration date by which a specific action must be completed or a period ends. It is commonly used for business deadlines, document submissions, and the shelf life of food products.

The extent or scope within which something exists, happens, or has influence. It is used to describe physical areas, limits of responsibility, or the breadth of a topic like a test.

A limitation or restriction placed on the amount, number, scope, or extent of something. It is frequently used in contexts like speed limits, time constraints, or age requirements to ensure order or safety.

A point, line, or edge beyond which something cannot or may not proceed. Used in academic contexts to discuss the limitations of theories or resources.