They've been replaced by aliens or robots "Thank you" by Martians, by CIA agents, by trained actors and actresses.

比如变成了外星人或者机器人,"谢谢",或者变成了火星人,中情局特工,或是训练有素的演员

耶鲁公开课 - 心理学导论课程节选

Gestapo agents intercepted him and demanded he sign a letter saying that at no point had he been threatened or harassed by the Gestapo.

盖世太保们拦住了他,要求他签署一份文件，上面写着,他绝没有受到盖世太保的威胁或骚扰。

耶鲁公开课 - 心理学导论课程节选

So, the concern at this time, and still remains a concern, is that infectious agents, particularly very deadly infectious agents like smallpox, could be weaponized in some way, or converted into a weapon.

当时有一些担心,现在还在担心,这些传染源,尤其是像天花非常具有致命性的传染源,可以进行某种程度的武器化,或者转变成武器

耶鲁公开课 - 生物医学工程探索课程节选