This is the 2806th most frequent Chinese word.
对外
"对外" means "external" or "foreign-facing."
In this sentence, "对外" means 'externally' and is used to describe the company's communication directed toward entities outside the company, emphasizing their outgoing or public communication.
公司对外公布了新的产品信息。
The company externally announced new product information.
Here, "对外" specifies the exclusivity for external communication purposes rather than internal use, illustrating its role in marking activities directed outward.
这份文件仅供对外交流使用。
This document is for external communication only.
"对外" here indicates the function of the courses to facilitate interaction with external or foreign audiences, emphasizing the scope of the courses.