Most Canadian native speakers, including almost all CBC radio announcers say "谬脸". 6 |8 x( b3 R: y' `$ D3 q4 {5 X' D" {& z( i$ b) B& u! b
Some VOA announcers say "咪脸". Chandler in sitcom "Friends" says "谬脸".; f- e5 y8 o P" w, O1 U' b
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I say "谬脸".