Translation of "Utter" in Chinese

She is an utter stranger to me.

她对我来说是一个完全陌生的人。

- She is an utter stranger to me.
- She's a complete stranger to me.

她对我来说是一个完全陌生的人。

He was too embarrassed to utter a word in front of the crowd.

他太难为情，在大众人前一句话也说不出来。