back to the drawing board片語KK [bæk tu ðə ˋdrɔɪŋ bɔrd] /bæk tu ðə ˈdɹɔɪŋ bɔɹd/發音片語1從頭再來、重新規劃、另起爐灶口語The design failed the safety test, so it's back to the drawing board.這個設計沒通過安全測試，只好從頭再來。