We have professional equipment to treat skin discoloration.

我们有专业的设备治疗皮肤变色。

Long-term smoking can cause discoloration of teeth.

长期吸烟会导致牙齿变色。

Their skin discoloration was caused by long-term outdoor work.

长期的户外劳动使他们皮肤变色。

There are potential side effects: burning and retinal discoloration.

但却有潜在的副作用，会造成视网膜灼伤、变色。

I strongly suggest you wash it in cold water to prevent discoloration.

我强力建议你用冷水洗以防止褪色。

Vitamin K is helpful in reducing discoloration and the appearance of capillaries.

维生素k能够帮助减少污点和外观毛细血管。

"This is when you see more age spots, sun spots, and discoloration," says Graf.

“这是当你看到皮肤上更多的老年斑，晒斑和暗斑的时候，”格拉芙说。

So that the plastic can be melted down and re-molded without any discoloration!

使塑料熔化后可重新塑造没有任何变色！