它既是可数名词,也是不可数名词。美德是一个名词,意思是“美德;高尚的道德;正直的品格;美德;优秀的品质;良好的习惯;优势;优势;用”,它的复数形式是美德。当它的意思是“高尚的道德;正直的品格;“美德”[详细]
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