农村的公共服务设施经常是不完备的。

Public services in rural areas are often inadequate.

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但过去的20年里，科学家们意识到孟德尔的理解是不完备的。

But in the past couple of decades, scientists have learned that Mendel's understanding was incomplete.

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有人怀疑用于判断航班是否禁飞的模型是基于粗略的数据和不完备的科学手段得出的。

Some suspected that the models used to justify the flight ban were based on sketchy data and incomplete science.

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