粪便逆行

【医】 reversal of gradient

粪便的英语翻译：

dejection; excrement and urine; soil
【医】 dejecta; dejection; dejecture; diachorema; excrement; feces; night-soil
ordure; raeces

逆行的英语翻译：

go in the wrong direction; regression; retrogradation; retrograde; stem
stem against; thrash
【机】 back; back run; backing