Be careful, and this is going to be especially complicated and confusing when we get to quantities that have a more obscure meaning like entropy.

大家要小心，如果需要测量的物理量,如熵，没有很明确的意义,那么着可能变得很复杂。

麻省理工公开课 - 热力学与动力学课程节选

Although some of them are a little obscure, basically they're pretty simple.

虽然它们中的有些有点模糊，但事实上，它们非常简单。

经常犯的失误 - SpeakingMax英语口语达人

It's difficult to imagine that as an expression of genuine grief over the death of a genuinely close friend would take the form of a poem so learned, so filled with remote literary allusions and obscure opinions.

这首诗是为表达对挚友逝去的真挚悲痛,却采取了这样一种如此博学，如此充满,遥远的幻境和隐晦的观点的形式,这确实是难以想象的。

耶鲁公开课 - 弥尔顿课程节选

There was a case of a very minor insurrection in an obscure Italian city in 1848 where the people of the town literally locked the ruler out of the town-- and Italy remains decentralized.

在1848年,有一场小规模叛乱,发生在一个意大利的小城里,人们把统治者锁在城门外面,如今意大利仍然是四分五裂的

耶鲁公开课 - 欧洲文明课程节选