hum and haw
拖延、犹豫不决、含糊其辞
口语·表达不耐烦
英文释义
To hesitate or be indecisive; to speak or respond slowly and uncertainly
例句
Stop humming and hawing and just tell me if you want to go to the party.
典故来源
模拟犹豫时发出的'嗯嗯啊啊'声音，16世纪起用于描述人说话吞吞吐吐。