When viewing the Sun, don't just stand there and stare at it; you should always have eye protection.
看太阳的时候,不要只是站在那里盯着太阳看;你应该时刻保护眼睛。
Crash Course 综合篇
Always wear eye protection, and no, just glasses do not count.
始终佩戴护目镜, 不,只是眼镜不算数。
当月 VOA Special English
Experts warn that it is unsafe to look directly at the bright sun without using specialized eye protection designed for seeing the sun.
专家警告说,如果不使用专门的护眼设备,直视明亮的太阳是不安全的。
当月 VOA Special English
Because the sun is never fully blocked by the moon in an annular solar eclipse, it is never safe to look directly at it without such eye protection.
因为在日环食中,太阳永远不会被月亮完全挡住,所以如果不戴护眼设备,直视太阳是不安全的。
Crash Course 天文篇
Sunspots can be huge; they commonly dwarf the entire Earth, and some are so big they can be seen without using a telescope (as long as you're wearing adequate eye protection, of course).
Eye protection is protective gear for the eyes, which comes in many types depending upon the threat that is to be reduced. The threats can be particles, light, wind blast, heat, sea spray or some type of ball or puck used in sports.