And when I finally found the courage to reveal my truth to the world, I not only understood the meaning of living without fear, but I finally understood that fear is truly all in our heads.

当我鼓起勇气向公众说出我的秘密之后，我不仅知道了毫无恐惧地生活的意义，而且也明白了其实所谓的“恐惧”也仅仅存在于我们自己的脑中。

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These processes are all influenced by a low red to far-red ratio, but the exact mechanisms were not understood.

这些过程又都受到较低的红光与远红光比的影响，但是这个机制的精确细节部分仍然没有被揭示。

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How to say you understood most of what was said, but not all.

对方说的你理解了大部分，但不是全部，你该如何说。

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Furthermore, ecosystems situated in the deep ocean, where biodiversity and habitats often have major value, but are generally not well understood, have virtually no protection at all.

UNESCO: NATURAL SCIENCES

"It has long been understood that these incidents are under reported, not just here in the UK but worldwide, making it all the more important that information is gathered from a variety of sources, " said a spokeswoman.

BBC: NEWS | Health | 'Improve NHS error reports' call