ultraviolet造句
The container is invisible until you shine an
ultraviolet light on it.
那个柜子只有用紫外线照射才可以看见。
It's called
ultraviolet rays.
它被叫做紫外线.
The ozone layer surrounding the earth protects our skin from being hurt by the
ultraviolet rays.
环绕地球的臭氧层保护着我们的皮肤免受紫外线的伤害.