临危不惧的英文：
[Literal Meaning]
encounter/danger/not/scared
not to feel scared when in danger

[解释]
遇到危险的时候，一点也不怕。

[Explanation]
to stay calm when there is trouble or danger

[例子]
地震来临的时候，他临危不惧，奋力从倒塌的楼里救出来了十个孩子。

[Example]
When the earthquake stroke, he stayed calm and saved ten kids from a collapsed building.

[英文等价词]
to keep one's head
face the music

Be undaunted in the face of perils
临危不惧

Some people are undaunted in the face of peril, and some display cowardice when faced with death.
有人临危不惧，有人贪生怕死。

The calm courage of the pilot preserved the lives of the passengers.
飞行员临危不惧，保住了乘客们的生命。