pep talk

a talk by somebody to give people confidence or encouragement

给人信心或鼓励的谈话

Paul spent the day giving pep talks to the troops.

保罗花了1天时间为部队作动员讲话。

I need a pep talk today.

我今天需要有人给我打打气。

He was filled with confidence again after the teacher's pep talk. 听了老师的那番鼓励的话语之后，他又充满了信心。