Telomerase is known to protect telomeres which stop the string of DNA unravelling much like the plastic tips at the ends of shoelaces stop fraying.
正如人们所了解的，端粒酶因其能够保护端粒，从而阻止DNA链的分离，就像鞋带末端的塑料能防止其受到磨损。
Nancy had asked I stop at the hardware store on my way home to pick up some odds and ends including a handful of screws to hand the paintings.
南茜让我在回家的路上到五金制品店里买一些零星的杂物，包括一把挂画用的螺丝钉。
When these were injected into yeast, the DNA sequence protected the chromosomes when they were copied, just as the plastic tips at the ends of shoelaces stop them from fraying.
当这些微型染色体注入到酵母细胞中后，在细胞分裂时，这种CCCCAA的DNA序列在复制时对染色体起到了保护作用，就像鞋带末端的塑料帽对鞋带起到的防磨损作用。
Many times a bowler will simply stop stepping in on that last step. You have to step in so your slide foot ends up in the center of your body in order to be balanced at the line.
球员经常在最后一步时把脚往内跨，往内的步伐应该停在身体的中心的延伸线上，这样身体才会平衡。
Many times a bowler will simply stop stepping in on that last step. You have to step in so your slide foot ends up in the center of your body in order to be balanced at the line.
球员经常在最后一步时把脚往内跨，往内的步伐应该停在身体的中心的延伸线上，这样身体才会平衡。
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