支支吾吾

jǐ miǎo hòu tā cái tīng dào duì fāng zhī zhī wú wú de huí dá tā

几秒后她才听到对方支支吾吾地回答她。

It was a few seconds before she heard a hesitant reply.

tā xiǎn rán bù zhī dào gāi zěn me huí dá wǒ de wèn tí zhàn zài nà lǐ zhī zhī wú wú de

他显然不知道该怎么回答我的问题，站在那里支支吾吾的。

He obviously didn't know how to answer my question, and just stood there humming and hawing.

miàn shì shí tā zhī zhī wú wú xiǎng bù chū shì dàng de huà yǔ

面试时她支支吾吾想不出适当的话语。

During the interview, she fumbled helplessly for words.