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Peristalsis is rhythmic, wavelike contractions of smooth what that moves food along the digestive system.
2个月前
理解问题Peristalsis is rhythmic, wavelike contractions of smooth what that moves food along the digestive system.
已完成理解「Peristalsis is rhythmic, wavelike contractions of smooth what that moves food along the digestive system.」
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Peristalsis is rhythmic, wavelike contractions of smooth what that moves food
along the digestive system.不在提醒