rictus是什么意思

n.露齿裂嘴,嘴裂

1. His face was frozen in a rictus of pain and terror.
他的脸上表情僵硬，充满了痛苦和恐惧的笑意。

2. She tried to stifle a laugh, but it escaped in a rictus of amusement.
她努力忍住笑，但最终还是放声大笑了。

（1）（面部的）歪笑，强颜欢笑（2）（口中的）发笑