intruder
侵入者,干擾者,妨礙者
In·trud·er n.
1. One who intrudes; one who thrusts himself in, or enters without right, or without leave or welcome; a trespasser.
They were all strangers and intruders. --Locke.
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intruder
n : someone who intrudes on the privacy or property of another
without permission [syn: interloper, trespasser]