falcate

例句：

1. 1.The thief was caught by the police with a falcate smile on his face.
   这个小偷被警察抓住时脸上带着狡黠的微笑。
2. 2. The dog's eyes were falcate, showing it was not happy about being left behind.
   这只狗的眼神狡猾，表明它对被留下感到不高兴。
3. 3. The criminal had a falcate mind, always planning his next move.
   这个罪犯心思狡诈，总是计划下一步行动。