Persona non grata (Latin, plural: personae non gratae), literally meaning “an unwelcome person”, is a legal term used in diplomacy that indicates a proscription against a person entering the country. It is the most serious form of censure which one country can apply to foreign diplomats, who are otherwise protected by diplomatic immunity from arrest and other normal kinds of prosecution. 外交官被称为“不受欢迎的人物”。

用在普通场合，指“受孤立、不受待见的人”

Nitpicking is the act of removing nits 虱子的孩子，家乡话叫箕子 (the eggs of lice, generally head lice) from the host’s hair. As the nits are cemented to individual hairs, they cannot be removed with most lice combs 篦子 and, before modern chemical methods were invented, the only options were to shave all the host’s hair or to pick them free one by one.

As nitpicking inherently requires fastidious 极其小心的, meticulous attention to detail, the term has become appropriated to describe the practice of meticulously searching for minor, even trivial errors in detail (often referred to as “nits” as well), and then criticising them 这就是汉语吹毛求疵的标准对译

跟老板产生矛盾，从而在店外、厂外，阻止别人入内，从而影响老板生意的活动。

a worker or group of workers who protest outside a building to prevent other workers from going inside, especially because they have a disagreement with their employers

表示彻底的“随机”，比random还要正式和随机

describes a process or system that is connected with random probability