单词：multiple stethoscope
单词：multiple stethoscope 相关文章
1. invention,发明物，创作品。 eg：The machine was his own invention. 这台机器是他自己发明的。 2. invent,发明,创造。 eg：He invented a new type of stethoscope. 他发明了一种新型听诊器。 3. term,专门名词,术语。
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