以此

"以此" is an adverbial phrase meaning "therefore," "thus," or "in this way." It is used to indicate a conclusion or result based on a preceding action or situation.

The character "以" (yǐ) means "to use," "by means of," or "according to," while "此" (cǐ) means "this" or "these." Together, they form a phrase that conveys a logical connection between ideas, often indicating cause and effect or inference.

"以此" is commonly used in formal writing, academic contexts, and structured arguments. It is less common in casual speech, where simpler expressions like "所以" (suǒyǐ, therefore) might be preferred. The phrase is often found in literature, legal documents, and instructional materials, emphasizing the logical progression of thoughts.