Usually there is only one or two a year bright enough to be seen with the naked eye.
通常，一年只有一到两颗彗星明亮得肉眼可见。
This is because their colors are not bright enough to be noticed by the human eye.
这是因为它们的颜色不够明亮，无法被人眼注意到。
Is it too bright or not bright enough?
是太亮还是不够亮呢？
Then he thinks the color isn't bright enough.
后来他又觉得颜色不够鲜艳。
Beautiful as she is, she is not bright enough.
虽然她很漂亮，她却不够聪明。
I can't do it - I'm not bright enough to succeed.
我做不了——我不够聪明，无法成功。
The full moon is bright enough to read a book by.
满月的光亮完全可以读书。
Hollywood's bright new future literally isn't bright enough.
好莱坞的光明未来从字面上带来的光明还不够。
But still the room wasn't bright enough to see others' faces clearly.
既便如此屋子里仍然不够明亮，看不清别人的脸。
You are the moonlight is not bright enough to let me see the direction.
你是月光不够明亮却足以让我看清方向。
The doctor didn't start the operation until the room was bright enough.
医生直到房间里的灯足够亮了，才开始做手术。
Also, check to see if the projector is bright enough to overpower the room's lighting.
同时要检查看看投影仪的亮度是否比房间的亮度强。
It is bright enough to be used as a primary light, and compact enough to be used as a backup.
它发出的光足以作为主灯使用，而且他非常小巧也可以作为备用。
They say that for nights the sky over Asia and Europe stayed bright enough to read the paper by.
他们说，连续几个晚上，欧洲和亚洲的夜空都亮的可以读报纸。
Currently, the M51 supernova, designated SN 2011dh, is still bright enough to follow with a small telescope.
M 51的超新星被冠以sn 2011dh的编号，它的亮度目前依然大到可以用小型望远镜观测到。
The Apollo landings took place during lunar mornings so the stars were not bright enough to be captured on camera.
阿波罗登陆的时间对于月球来说是早上，所以星星没有那么明亮，相机也很难捕捉到。
America's first free municipal university, founded in 1847, offered its services to everyone bright enough to meet its gruelling standards.
美国第一所市立免费大学创建于1847年，它为任何聪明才智足以应付其严格入学标准的人提供服务。
Leave the sun Jar outside or in a sunny window in DIRECT sunlight for several hours to charge, electric light indoors is not bright enough!
白天，把小瓶子放在阳光或是人造光源下，它会自动搜集能量给电池充电。
It is not bright enough, but that is perfectly OK… I do not have any blowout at the entrance and will compensate for it all in post production.
虽然它的亮度不够，但这是非常的完美…我没有做任何的曝光在入口，我将在后期处理中加强。
Also known as "h and chi Persei", this unusual double cluster, shown above, is bright enough to be seen from a dark location without even binoculars.
上图所示的这一亦称“h和chi英仙座”(“ h andchi Persei ”)的不同寻常的双星星群的亮度高到可以在一个暗处不用双筒望远镜就看到。
And, since individual Cepheids are bright enough to be seen in other galaxies, they were the first tool used to estimate the distances to such galaxies.
且由于在另一个星系中的单颗“造父变星”的亮度就足于使其被观测到，所以它们是测算类似星系距离的首选工具。
Let's hope that they are sensitive enough to feel, bright enough to warm, tolerant enough to welcome opposition and challenges, and big enough to forgive even our enemies.
我们希望他能够足够敏感的去感觉，足够明亮的去温暖，足够宽容的去接受不同的意见和挑战，最够宽厚的去原谅，甚至包括我们的敌人。
If i said, in my house, i can touch the moon by raising my hand, moonlight is bright enough to have a shadow ofu, and you can differentiate each horoscope , you must believe it.
如果我说，在我家，你一伸手就可以摸到月亮，月亮亮得可以把你照出影子，还可以让你辨别各个星座，你一定要相信。
There was more ginseng than his father could have dreamed of, a hillside spangled with bright yellow leaves, enough roots to bulge Jesse's knapsack.
那里有比他父亲所能想象的更多的人参，满山坡的明亮的黄叶子闪闪发光，足够塞满杰希的背包。
It is called the bright-young-Sun solution, according to which the Sun would have provided enough heat for the water on Earth and Mars to be liquid.
它被称为“明亮的早期的太阳解决方案”，根据该方案，太阳将提供足够的热量，使地球和火星上的水变成液体。
At the base of a mountain in Tanzania's Gregory Rift, Lake Natron burns bright red, surrounded by the remains of animals that were unfortunate enough to fall into the salty water.
在坦桑尼亚格雷戈里大裂谷的一座山脚下，纳特龙湖呈现出火焰燃烧般的亮红色，周围是不幸落入咸水的动物遗体。
At the base of a mountain in Tanzania's Gregory Rift, Lake Natron burns bright red, surrounded by the remains of animals that were unfortunate enough to fall into the salty water.
在坦桑尼亚格雷戈里大裂谷的一座山脚下，纳特龙湖呈现出火焰燃烧般的亮红色，周围是不幸落入咸水的动物遗体。
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