The Vietnamese word "tay trong" (tay trong) can be understood primarily as a noun that refers to someone who acts as a "fifth columnist" or an "internal collaborator." This term is often used in contexts where an individual supports or assists an opposing group or ideology from within an organization or community, often secretly or covertly.
Basic Example: "Trong một số tổ chức, có thể có tay trong đang làm việc cho kẻ thù." (In some organizations, there may be an internal collaborator working for the enemy.)
Advanced Usage: "Việc phát hiện tay trong trong chính quyền là rất quan trọng để bảo vệ an ninh quốc gia." (Detecting internal collaborators within the government is crucial for national security.)
In summary, "tay trong" is a significant term in Vietnamese that denotes an individual acting as a secret supporter of an opposing side.