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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Cutting the entire meat up into pieces or cutting more than one at a time is tacky.

把整快肉切成小块，或者一次切一块以上的肉都是非常俗气的做法。

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Cut large pieces of food, such as steak or chops, into small pieces all at one time.

把大块食物，如牛排或排骨，一次切成若干小块。

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In the decades-long battle against this devastating disease, this is one of the best pieces of news in a long time.

FORBES: Despite the Odds, Vaccinators Triumph Over Polio

Researchers can only use dead cells or pieces of a cell and can only test for one response at a time, such as enzyme activity or the binding of a compound to a receptor.

FORBES: Laser light shows

One brand, which could sell 1, 000 watches per year but struggles to complete 100 pieces in the same time, sends 80 of them to Japan.

WSJ: The Changing Face of Watchmaking