v.(使)變紅；臉紅
The leaves turns yellow, the maples redden, so beautiful and so graceful! 樹葉黃了,楓葉紅了,煞是好看。
She reddened at the sight. 她看到那光景而臉紅。
Humans redden when they are angry. 人類憤怒時會臉紅。
