“白热化”，原指物体受热达到白炽（glowing white with heat）的状态，现在比喻竞争、局势发展到最激烈的阶段（in the heat of the battle），可翻译为“white-hot”。

例句：

zhēng lùn dá dào le bái rè huà de chéng dù
争论达到了白热化的程度。
The debate became white-hot.

jìng xuǎn huó dòng zài zuì hòu jiē duàn qū yú bái rè huà
竞选活动在最后阶段趋于白热化。
The campaign heated up in its final days.