众所周知

A difficult problem or task that requires significant effort and intelligence to solve.

To apply or make use of knowledge, skills, or tools in a flexible and effective way.

To judge or evaluate something based on a set of criteria or standards.

To make something weaker, less effective, or less powerful.

Even if; even though. Used to introduce a hypothetical or actual concession that does not affect the outcome.

To attribute something to a particular cause or source.

Characterized by rigorous, strict, and careful attention to detail, especially in logic or scientific methods.

To write or compose, typically used for formal documents, books, or articles.

A general description or plan giving the essential features of something but not the detail; an outline.

A passage or expression that is quoted or cited from another source.