by design的同义短语
同义短语是on purpose，例如： 1.Was it an accident or did David do it on purpose?是意外还是戴维故意所为？ 2.There were moments when I wondered: did she do this on purpose, was it all just a game, an act?有时我很困惑：她这么做是故意的吗？难道一切都只是一场游戏，是逢场作戏？ 3.I was deliberately trying to...