color up

• vi. 脸红

color up的用法和样例：

例句

用作不及物动词 (vi.)

1. She felt the color flamed up in her cheek.
   她感到自己的脸红了。
2. The little girl colored up when she realized that we were watching her drawing.
   当小女孩意识到我们正在看着她画图时，她脸红起来了。