a sharp dagger

• 锐利的匕首

a sharp dagger的用法和样例：

例句

1. They wrenched the dagger from his grasp.
   他们夺下他握着的匕首。
2. The old fool struggled and I struck a mortal wound with my dagger.
   这老傻瓜拼命挣扎，我用我的匕首捅死了他。