名词
中文翻译：初级孔
同义词：
['primary opening', 'primary hole']
例句：
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1.The primary pore is where water first enters the plant.
初级孔是水首先进入植物的地方。
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2. The scientist found a new way to open up the primary pore in the rock.
科学家发现了一种打开岩石中初级孔的新方法。
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3. The engineer designed a machine that could drill through the primary pore of the rock.
工程师设计了一种机器，可以钻穿岩石的初级孔。