Definition
To speak in a hesitant and unclear manner, often avoiding giving a direct answer or opinion.
含糊其辭；猶豫不決
When asked if he agreed with the proposal, he began to hum and haw, not giving a clear answer.
當被問到是否同意這項提案時，他開始支支吾吾，沒有給出明確的答案。
She knew she should make a decision, but she just sat there humming and hawing, wasting time.
她知道應該做決定，但她只是坐在那裡猶豫不決，浪費時間。
During the interview, he began to hum and haw because of his nervousness, which gave the interviewer a bad impression.
在面試過程中，他因為緊張開始支支吾吾，給面試官留下了不好的印象。