| 单词 | ultrasonogram | 
| 释义 | ultrasonogramnoun  ul·tra·sono·gram  ˌəl-trə-ˈsä-nə-ˌgram     plural ultrasonograms     : an image produced by ultrasound : sonogram  An ultrasonogram showed the presence of 2 fetuses and 2 normal heart tones. … ultrasonograms, which use sound waves to create a picture of your body, are better for looking at dense breast tissue … | 
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