When you feel like you're about to lose your temper, it's wise to step away from the situation.

lose 是动词，意思是"失去、丧失"。 your 是形容词性物主代词，表示"你的"。 temper 是名词，指"脾气、情绪"。 lose your temper 是一个固定短语，意思是"发脾气、失去耐心"，形容情绪失控的状态。