【英语时差8,16】太阳黑子

 Sunspots occur at places where the sun’s irregular magnetic field is highly concentrated. The sun’s surface is usually reheated by a continual flow of hot material from deep inside the sun. However, a strong concentration in the magnetic field can interfere¹ with this reheating flow. Sunspots are therefore slightly cooler and darker than their surroundings. Because the sun’s magnetic field reverses regularly, the concentration of sunspots also follows an eleven year cycle. At the height of this cycle there can be as many as a hundred spots a day, some larger than the Earth itself. During quieter parts of the cycle, the sun can be completely unblemished. Don’t try to look for sunspots yourself, even through sunglasses. It is especially dangerous to look at the sun through binoculars², a telescope, or a camera. The only safe way to see what sunspots look like is to find a picture of them.

1 interfere   

v.(in)干涉，干预；(with)妨碍，打扰

参考例句：

• If we interfere, it may do more harm than good.如果我们干预的话，可能弊多利少。
• When others interfere in the affair,it always makes troubles. 别人一卷入这一事件，棘手的事情就来了。

2 binoculars   

n.双筒望远镜

参考例句：

• He watched the play through his binoculars.他用双筒望远镜看戏。
• If I had binoculars,I could see that comet clearly.如果我有望远镜，我就可以清楚地看见那颗彗星。