It may not help you tie your shoe but that little plastic tip keeps the rest of the shoelace, the shoe string from unraveling into weak and useless threads.

它可能不能帮你系鞋带，但那小小的塑料头可以让鞋带的其余部分不会散开成脆弱无用的线。

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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。

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Often she stopped on the way to get him a plastic bag of Milo, tied shut with raffia string, a straw poking through.

她常在路上给他买塑料袋装的高粱，用酒椰绳捆住袋口还会有一穗高粱露出来。

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Some of the victims had been "hogtied" with string or plastic strips before being executed.

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Eventually, a thin string of plastic will emerge from the nozzle.

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While he waits, a chain-smoking captain, Salih Yilmaz, busies himself with a plastic bottle and a piece of string, fishing for calamari to serve in his restaurant.

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