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活水之声 • sa074 听诊器 • Listen on Fountain

sa074 听诊器

Episode • Jun 12, 2023 • 12m

听诊器发明之前，医生都是把耳朵贴在病人的胸膛上听诊，既麻烦又听不清楚。www.livingwaterstudio.net

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