If you are reckless, you do not care — or you will not let yourself care — about the possible bad or dangerous results of what you are doing.

if you are reckless如果你是 reckless（魯莽）的，you do not care — or you will not let yourself care —你不在乎——或是你不讓自己去在乎—— about the possible bad or dangerous results of what you are doing你在做的事可能帶來的壞結果或危險。

This is stronger and darker than careless. Careless often means you were not paying attention. Reckless often means the danger was there to see, and you went ahead anyway: driving far too fast, climbing on a roof for fun, spending money you cannot pay back, saying something cruel without a thought for the hurt.

this is stronger and darker than careless這個字比 careless（粗心）更強烈、更陰暗。careless often meanscareless 通常是指 you were not paying attention你沒有在注意。reckless often meansreckless 通常是指 the danger was there to see危險是看得到的，and you went ahead anyway但你還是照做了：driving far too fast, climbing on a roof for fun, spending money you cannot pay back, saying something cruel without a thought for the hurt開車開得太快、為了好玩爬上屋頂、花你還不起的錢、說出傷人的話卻完全沒想到會傷到人。

People use it of actions (a reckless decision) and of people (a reckless driver). It is never praise.

people use it of actions (a reckless decision)人們會用它形容行為（a reckless decision 魯莽的決定），and of people (a reckless driver)也會形容人（a reckless driver 魯莽的駕駛）。it is never praise它從來不是稱讚。

News reports and courts use it as a serious word. Though actually, friends sometimes use it more loosely, almost meaning “wild” or “very bold,” which is a bit softer than the strict sense.

news reports and courts新聞報導和法庭 use it as a serious word把它當成一個嚴肅的字來用。though actually不過其實，friends sometimes use it more loosely朋友之間有時候會用得比較鬆，almost meaning "wild" or "very bold,"幾乎是「很狂」或「很大膽」的意思，which is a bit softer than the strict sense比嚴格的意思要軟一點。