1
the epithelial duct
通常使用定冠词
The epithelial duct transports secretions.
上皮导管输送分泌物。
上皮导管；由上皮细胞衬里的身体通道或管道，输送分泌物或其他物质
先理解核心含义，再看它在真实句子里的用法。
上皮导管；由上皮细胞衬里的身体通道或管道，输送分泌物或其他物质
a bodily passage or tube lined with epithelial cells that carries a secretion or other substance
The epithelial duct transports secretions.
上皮导管输送分泌物。
相关中文义项：上皮导管；由上皮细胞衬里的身体通道或管道，输送分泌物或其他物质
a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
The doctor explained that the epithelial duct carries digestive enzymes from the pancreas to the intestine.
医生解释说，上皮导管将消化酶从胰腺输送到肠道。
In the human body, each epithelial duct is lined with cells that help secrete or transport substances.
在人体中，每个上皮导管的内壁都有一层细胞，有助于分泌或运输物质。
A blockage in an epithelial duct can lead to inflammation and pain.
上皮导管堵塞可能导致炎症和疼痛。
通常使用定冠词
The epithelial duct transports secretions.
上皮导管输送分泌物。
表示路径
The fluid passes through the epithelial duct.
液体通过上皮导管。
表示位置
Obstruction in the epithelial duct can cause inflammation.
上皮导管内的阻塞可导致炎症。
Not this
The doctor examined epithelial duct.
Use this
The doctor examined an epithelial duct.
可数名词单数前需加冠词，且"epithelial"以元音音素开头，应用不定冠词"an"，而非省略冠词。
Not this
The epithelium duct is part of the gland.
Use this
The epithelial duct is part of the gland.
"epithelium"是名词，不能直接修饰名词；应用形容词形式"epithelial"来修饰"duct"。
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