to keep one's head down
to prevent trouble by trying not to become involved in something or draw attention to oneself
[短语]
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登录to mind one's own business
to only concern oneself with one's own private matters and not to interfere in those of others
[短语]
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登录none of one's business
used to tell someone that it is not necessary for them to know about something and that they should stop questioning about it
[短语]
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登录 on the sidelines
in a state where one notices something but refuses to get oneself involved in it
[短语]
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登录out of the picture
(of a person or thing) no longer involved or present in a situation or activity
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