She felt a wave of panic, but forced herself to leave the room calmly.

她感到一阵惊慌，但是强迫自己镇静地离开了房间。

《柯林斯英汉双解大词典》

She said she was enjoying herself but her smile was forced.

她说自己很快活，但是她的笑容很勉强。

《牛津词典》