Every time the Chromosome divides—every time one cell divides into two—pieces of the ends of the Chromosome, the telomere, get broken off.

当每次染色体分裂时——即当每次一个细胞分裂成两个时——染色体的尾部，也就是端区，就会发生断裂。

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The shuttle often got stuck, causing a lot of broken ends.

梭子常常卡住，造成大量断头。

《新英汉大辞典》

It is necessary to have a stop motion since a good warp should not contain many broken ends.

在整经机上设置停车机构是必要的，因为合格的经纱不能存有许多断头。

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The result of device-specific websites and user redirects is a collection of user-experience dead ends and broken links for customers, and strategic roadblocks for companies that will suffer lost customers and revenues.

FORBES: The Future Of The Web: The Case For Responsive Design