N-UNCOUNT Muck is dirt or some other unpleasant substance. 污物 [非正式]
This congealed muck was interfering with the filter and causing the flooding.
这凝固的污物堵塞着滤器，导致淹水。
Maybe your child mucks up only at school.
也许你的孩子只是在学校里捣乱。
So making the study of slag mucks as silicon fertilizer was significant.
因此，开展工矿废渣作硅肥的研究具有重要意义。
He is one of Mickey Mouse's best PALS and despite good intentions, usually mucks up even the simplest of plans.
牠是米奇老鼠的好友之一，虽然处事动机良好，却往往把很简单的事也弄得一团糟。
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