butterfly knife 蝴蝶刀

butterfly knife
繁：蝴蝶刀
简：蝴蝶刀

一名交通部高級警員，昨晚趁休班往葵涌安蔭邨探訪母親，步經大廈走廊時，突然遇上一名行為古怪男街坊，不由分說，持蝴蝶刀向他追劈，他下顎及身體被斬七、八刀，腸臟溢出，奮力反抗，疑犯亦受傷，警方到場拘捕涉案男子，傷者送院搶救。

休班警探母遭劏肚 疑兇涉「蝴蝶刀」連割8刀（2017年10月23日），頭條日報，取自http://hd.stheadline.com/news/realtime/hk/1045238/

Police identified the suspect as Yeung, 52, a neighbor of Ng’s mother, according to Apple Daily. He was armed with an eight-centimeter-long butterfly knife.

Policeman seriously injured in Kwai Chung knife attack. (2017, October 23). EJ Insight. Retrieved from http://www.ejinsight.com/20171023-policeman-seriously-injured-in-kwai-chung-knife-attack