无表情地

例句：

1. 1. The scientist's expressionless face gave no indication of his thoughts.
   科学家冷漠的表情没有透露他的想法。
2. 2.She wore an expressionless mask to the party.
   她在派对上戴着一副毫无表情的面具。
3. 3. He was expressionless as he listened to her words.
   他听着她的话，面无表情。