分词翻译
下行的英语翻译：
being issued to the lower levels; down; downriver蠕动的英语翻译：
creep; creepage; peristalsis; squirm; vermiculation; wriggle; wring; writhe
【医】 enterocinesia; enterokinesia; peristalsis; peristaltic movement
vermicular motion; vermicular movement; vermiculation
