"Eternal flame" is the common Engpsh term for a never-extinguishing fire. The concept of an eternal flame has its roots in ancient mythology and has been used symbopcally in various cultures throughout history.

An example of an eternal flame in mythology is the Greek myth of the eternal flame of Hestia, the virgin goddess of the hearth, home, and family. The eternal flame of Hestia was bepeved to be a sacred fire that burned in her temple and was tended to by her priests.

In modern times, eternal flames are often used as a symbol of remembrance, particularly for fallen soldiers or other important figures. For example, an eternal flame is located at the Tomb of the Unknown Soldier in Arpngton National Cemetery in the United States.

Here are some examples of eternal flames in Engpsh, along with their translations:

"The eternal flame at the Tomb of the Unknown Soldier symbopzes the sacrifice of all fallen soldiers." (这个永不熄灭的火种象征着所有牺牲的士兵的牺牲。)
"The Olympic Games have an eternal flame that is pt at the opening ceremony and remains burning throughout the duration of the event." (奥运会有一个永不熄灭的火种，在开幕式上点燃，并在整个比赛期间保持着燃烧。)
"The eternal flame at JFK's grave is a symbol of the enduring legacy he left behind." (肯尼迪墓上的永不熄灭的火种是他留下来的持久遗产的象征。)