The other involved collecting biopsy tissue samples to gather genetic material, with a total of 43 taken over a 10-year period.

另一种方法则涉及采集活检组织样本来收集含遗传信息的物质，10年期间共采集了43个样本。

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Unless they're total bores, this should give you plenty of material for follow-up questions.

除非他们是彻头彻尾的闷蛋，不然这应该能给你制造很多接话的素材。

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The thinner these layers are, the more important these interfaces become because they make up more of the total volume of the material.

涂层越薄，涂层界面就越重要，因为它们占的物质总量就越多。

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It says the on-demand video material would total around 20 minutes per day, plus an additional three daily news, sport and weather bulletins, each lasting up to 90 seconds.

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