口を開く

Meaning

1. expv5k
   to open one's mouth (to talk); to (start to) tell

Example sentences

• 彼女はあまりしゃべらないが、いったん口を開くと弁が立つ。

  She doesn't talk much, but once she does speak she is eloquent.

• 彼は口を開くと必ず何かしら不満を言う。

  He never opens his mouth without complaining about something.

• 私は口を開くとすぐに彼女が私をさえぎった。

  I had hardly opened my mouth, when she interrupted me.