例如，维纳斯捕蝇草和葡萄牙茅膏菜有共同的祖先，后者只通过茎上的“捕蝇纸”腺体被动地捕捉猎物。
Venus flytraps, for example, share an ancestor with Portuguese sundews, which only catch prey passively, via "flypaper" glands on their stems.
然而耳垢的作用看上去极其单一，像一张生物捕蝇纸，防止灰尘和昆虫进入耳朵。
But earwax seems to have the very humble role of being no more than biological flypaper, serving to prevent dust and insects entering the ear.
类似的，这个数字时钟也用一张捕蝇纸来收集猎物，然后通过相同类型的微生物燃料电池供电。
Similarly, a digital clock is powered with the same type of microbial fuel cell, collecting its prey with flypaper.
类似的，这个数字时钟也用一张捕蝇纸来收集猎物，然后通过相同类型的微生物燃料电池供电。
Similarly, a digital clock is powered with the same type of microbial fuel cell, collecting its prey with flypaper.
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