to  keep  one's nose clean
keep
ki:p
kip
<i>one's</i>
wʌnz
vanz
nose
nəʊz
newz
clean
kli:n
klin

英語での「 keep one's nose clean」の定義と意味

to keep one's nose clean
01

to try to stay away from trouble 

慣用句
くだけた
To secure a promotion at the company, Mark resolved to keep his nose clean, adhering strictly to company policies and ethical standards. 
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