He hemmed and hawed when asked to address the crowd .

被要求在人群中出现时他支吾起来。

When I asked him what had happened , he just hemmed and hawed .

我问他发生了甚么事，他只是支吾以对。

He hummed and hawed but finally told me the truth .

他先是支支吾吾，可最后还是跟我说了实话。

He hummed and hawed , giving no definite reply .

他闪烁其词，不做肯定答复。

We hummed and hawed before deciding to buy the house .

我们曾经犹豫了很长时间才决定买这幢房子。