Food is propelled by rhythmic contractions of muscles in the wall of the esophagus.
食物被食管壁肌肉通过节律性的收缩推动。
单词 | rhythmic contraction |
例句 |
原声例句
2017级专外有声 Food is propelled by rhythmic contractions of muscles in the wall of the esophagus. 食物被食管壁肌肉通过节律性的收缩推动。 |
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