đỏ mặt, ửng hồng
to become red in the face, typically as a result of embarrassment, heat, or strong emotion
:
• She flushed with embarrassment when he complimented her.
Cô ấy đỏ mặt vì xấu hổ khi anh ấy khen ngợi cô.
• His face flushed with anger.
Mặt anh ta đỏ bừng vì tức giận.