混入

混入	hùn rù	to sneak into
混	hún	muddy; turbid (variant of 浑) / brainless; foolish (variant of 浑) / Taiwan pr. [hun4]
混	hùn	to mix / to mingle / muddled / to drift along / to muddle along / to pass for / to get along with sb / thoughtless / reckless
入	rù	to enter; to go into / to join; to become a member of / (bound form) to conform to (as in 入时) / abbr. for 入声 / (on product packaging, after {number n} + {classifier}) containing (n pieces) (from Japanese 入 "iri")