Others say it puts a limit on the amount we can know about the universe, since we only know what state a particle is in once it is measured.
另一些人则认为，它为我们对宇宙的认识定下了界限，因为一个粒子只有被测量了，我们才能准确知道它的状态。
I wish we knew the music that David made for it, but we only know his words.
这是一首优美的歌曲，我多希望我们还能知道大卫创作的曲谱，不过如今只有歌词流传了下来。
We never make it clear and we only know she certainly gives our lives more emotions and colours.
我们从来都不清楚，只知道她的确给我们的生命赋予了更多的情感与色彩！
We only know that there hasn't been any period in the history during which the world was really at peace.
我们只知道，在历史上从来没有一段时期世界是真正处于和平状态。
Dark energy makes up three-quarters of our Universe but is totally invisible. We only know it exists because of its effect on the expansion of the Universe.
暗能量占据了我们宇宙的四分之三，然而又是完全看不见的。我们只能根据它对宇宙膨胀所起的作用来认识到它的存在。
Dark energy makes up three-quarters of our Universe but is totally invisible. We only know it exists because of its effect on the expansion of the Universe.
暗能量占据了我们宇宙的四分之三，然而又是完全看不见的。我们只能根据它对宇宙膨胀所起的作用来认识到它的存在。
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