1、The officers had to muck in with their men
軍官須與士兵同住.

2、Remain suspicious because Chinese are considered as hiding muck in programs them.
仍然可疑，因為中國被視為藏匿在淤泥程序。

3、If we all muck in we'll soon finish the work.
如果我們大家都參加進去，很快就能完成這項工作。

muck in翻譯