Perversity is the quality — the streak in a person, or the awkward turn in a situation — of being perverse. If someone has a streak of perversity, they keep choosing the contrary, unreasonable thing, even when it costs them.

Perversity is the qualityperversity是指一種特質 the streak in a person, or the awkward turn in a situation——一個人身上的那股勁，或一個情況裡彆扭的轉折—— of being perverse就是「彆扭、故意唱反調」的那種性質。 If someone has a streak of perversity如果一個人有這種perversity的特質， they keep choosing the contrary, unreasonable thing他就是會一直選那個相反、不合理的做法， even when it costs them就算會讓自己吃虧也一樣。

Writers also pin it on things, not only people: “the perversity of the weather,” “the perversity of the machine,” meaning it goes wrong in the most inconvenient way, as if on purpose.

Writers also pin it on things, not only people作家也會把它安在事物上，不只是人： “the perversity of the weather,” “the perversity of the machine,”「the perversity of the weather」（天氣的彆扭）、「the perversity of the machine」（機器的彆扭）， meaning it goes wrong in the most inconvenient way意思是它偏偏用最不方便的方式出錯， as if on purpose好像是故意的一樣。

It names the trait or the twist, not a person. You would not call someone “a perversity.” It is a slightly bookish noun; in speech people more often say stubborn, awkward, or “they just have to do the opposite.”

It names the trait or the twist它是在指那個特質或那個彆扭的轉折， not a person不是在指一個人。 You would not call someone “a perversity.”你不會叫某個人「a perversity」。 It is a slightly bookish noun這是個有點書面的名詞； in speech people more often say stubborn, awkward, or “they just have to do the opposite.”在口語裡，大家比較常說固執、彆扭，或「他就是非要唱反調不可」。