耳边风 [ěr biān fēng]

• a puff of wind passing the ear -- unheeded advice; go in at one ear and out at [of] the other; be disregarded; flit by like a breeze; like water off a duck's back; a matter of no concern:

  let sth. in at one ear and out the other; turn a deaf ear to sth.;

  当作耳边风

  My repeated warnings to her went in one ear and out the other.

  她把我对她的一再警告当作耳边风。