turn, get 和grow 的区别：

1. turn 表突变, 后常接表颜色的词 (turn yellow)

   When she saw this, she turned red.

 当她看到这个时，她脸红了。

2. get 强调变的结果 (get tired)

It's getting cold.

天气变冷。

3. grow 强调过程, 逐渐的变化 (grow big)

 His cold is growing worse.

 他的感冒正在加重。