引出凭借、依据：据

In Chinese, the word "据" is commonly used to introduce a source or basis for information, similar to the English phrases "according to" or "based on." It serves to attribute statements or data to specific authorities, statistics, or reports, thereby lending credibility to the information presented.

1. Usage with Experts: When citing an expert, "据" is often followed by a noun phrase that identifies the expert or the source of information. For example:

2. 据专家介绍，这个信息并不准确。 (According to the expert's introduction, this information is not accurate.) Here, "据专家介绍" indicates that the information is based on what the expert has stated.

3. Usage with Statistics: "据" can also introduce statistical data, providing a factual basis for claims. For instance:

4. 据统计，大多数家庭有一到两个子女。 (According to statistics, most families have one or two children.) In this case, "据统计" signals that the following statement is derived from statistical analysis.

5. Usage with Reports or Rumors: Additionally, "据" can be used to reference hearsay or reports, often indicating that the information may not be verified. For example:

6. 据说，他还没决定放弃。 (It is said that he has not yet decided to give up.) Here, "据说" suggests that the information is based on what people are saying, rather than confirmed facts.

Overall, "据" is a versatile word that helps to establish the credibility of statements by linking them to recognized sources, whether they be experts, statistics, or common discourse.