impassivity

例句：

1. 1. The scientist's impassivity is a testament to his dedication to research.
   科学家的冷漠是对他对研究的奉献的证明。
2. 2. The patient's impassivity was a stark contrast to the restless energy of the room.
   病人的冷漠与房间内不安的能量形成了鲜明的对比。
3. 3. The teacher's impassivity made it clear that he did not want to engage with the students.
   老师的冷漠表明他不想与学生互动。