Two years ago . I also regrew my beard .

两年前，我也修整了我的胡须。

The neurons in the eyes of sperry 's newts regrew their axons , eventually linking up to neurons in the vision-processing region of the brain .

接受斯佩里手术的蝾螈体内，眼部神经细胞的轴突重新生长，最终与大脑视觉区建立连接。