Take a knife and open up the skin and let's see what's inside.

用刀子切开皮肤,看看体内有什么

耶鲁公开课 - 生物医学工程探索课程节选

and it's like knives, it's like it's really different.

像刀子一样，真的很不一样。

我的梦想是当发型师 - SpeakingMax英语口语达人

The bloody knife " and piece of wood beside him.

沾血的刀子,和一块木头放在他的尸体旁。

耶鲁公开课 - 政治哲学导论课程节选

And having seized this opportunity," that language, seized the occasion, seized this opportunity, "he had emplaced one morning in the piazza in two pieces, with a piece of wood and a bloody knife beside him.

而抓住这个机会“,这样的文字，抓住这个机遇，抓住这个机会，“一个早晨在广场上,他将两样东西安放在官员的旁边，一块木头,和一把沾血的刀子。

耶鲁公开课 - 政治哲学导论课程节选

Machiavelli gives him a knife.

马基雅维利给了他一把刀子。

耶鲁公开课 - 政治哲学导论课程节选