切断者

例句：

1. 1. The accident happened when the driver was cutting off traffic.
   事故发生时，司机正在切断交通。
2. 2. The company's decision to cut off funding for the project was a surprise.
   公司决定切断对该项目的资金支持，这让人感到意外。
3. 3. The scientist found that the virus could be cut off from the host cell by using a specific drug.
   科学家发现，通过使用特定的药物，病毒可以被切断与宿主细胞的联系。