adj.不担忧的，平静的，镇静的，镇定的

Despite the chaos around him, he remained unperturbed.
尽管周围一片混乱，他依然镇定自若。
She listened to the bad news with an unperturbed expression on her face.
她听到坏消息时面不改色。
The experienced climber moved through the storm without appearing unperturbed.
那位经验丰富的登山者在暴风雨中前行，看上去毫不惊慌。
He maintained his usual unperturbed demeanor even under pressure.
即使面临压力，他也保持了惯常的冷静态度。
The child seemed unperturbed by the loud thunderstorm outside.
孩子似乎对外面的雷雨声无动于衷。
The actor delivered his lines with an unperturbed confidence.
演员自信而从容地念出了台词。
Despite the tight deadline, she remained unperturbed and focused on her work.
尽管时间紧迫，她仍心无旁骛、泰然处之。
His unperturbed response to the criticism showed great maturity.
他对批评的冷静回应显示出非凡的成熟度。
In the face of danger, the soldier displayed an unperturbed bravery.
面对危险，士兵表现出了无所畏惧的勇气。
The teacher calmly addressed the class, unperturbed by their chatter.
老师平静地面对全班学生，对他们的窃窃私语毫不在意。