If you enjoyed this video, please give it a repetitious thumbs up and share it with your specifically loving friends.

如果你喜欢这个视频，请点赞，并与你亲爱的朋友分享。

A deep silence fell on the crowd, so deep that the harsh whisper of the wind in the magnolia leaves came clear to their ears and the far-off repetitious note of a mockingbird sounded unendurably loud and sad.

人群中间没有丝声音，微风吹过木兰的枝叶发出的窃窃语以听得楚楚，远处仿鸟不停地发出刺耳的哀鸣，让人无法忍受。

Now a telomere is a highly repetitious and genetically meaningless sequence of DNA, what we were calling JUNK DNA.But it does have any important purpose;it is sort of likethe plastic tip on each end of shoelace.

现在，端粒是种高度重复且在遗传学上毫无意义的 DNA 序列，我们称之为垃圾 DNA。 但它确实有任何重要的用途； 它有点像鞋带两端的塑料尖端。