头脑冷静的气象学家很快把这件事搁置起来：认为它只是一种光的幻觉，起因于阳光击中了一朵云彩，刚好能以一种合适的方式被风或飞机交通而使人感到不安。
Cool-headed meteorologists were quick to put the story to bed: it was just an optical illusion, the cause of sunlight hitting a cloud disturbed by wind or plane traffic in just the right way.
最新研究表明火星吸收了刚刚好的阳光来支持生命。
Recent research shows that Mars receives just enough sunshine to sustain life.
行星X行踪飘忽，躲躲藏藏，被尘埃云雾包裹着，除了反射角度刚刚好的稀有时刻外，都将阳光反射回了太阳。
The elusive Planet X is, however, shrouded by a dust cloud that bounces sunlight back to the Sun, except for those rare moments when the angle of reflection is just right.
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