system is the opposite of the open system, no mass and no energy can flow through the boundary.

孤立系与开系正相反，没有质量或能量,能流过它的边界。

麻省理工公开课 - 热力学与动力学课程节选

And, what they were trying to do was imagine a new world which would be less centralized; but, for the socialists, they wanted more centralization.

他们留下的目的就是,能生活在一个没有中央集权的社会中,但是,对于社会主义者来说则正相反

耶鲁公开课 - 1871年后的法国课程节选

We have an image here of the reconstituted, repaired body of Orpheus whose gory, severed head had been sent down the swift Hebrus to the Lesbian shore. It's as if Milton can't let go of this most un-Christian attachment to the human body.

想到一个完整的被修复好了的俄耳甫斯的身体,他血淋淋的被割下来的头颅曾,被赫伯鲁河一路冲下去直到莱斯博斯岛，似乎弥尔顿放不开,这对人体的眷恋，而这与基督教教义正相反。

耶鲁公开课 - 弥尔顿课程节选

sa So we have 1 s a, and we're drawing this as having a positive amplitude, but since we have destructive interference we're going to draw 1 s b as having the opposite sign, so we have a plus and a minus in terms of signs.

我们有，我们把这画成一个正的振幅，但因为我们是相消干涉,我们把1sb画成相反的符号，所以我们有一正一负两个符号。

麻省理工公开课 - 化学原理课程节选

We don't expect everybody to be a course six major, contrary to popular opinion, so for those are you not in that category, the second thing we want to do is we want to help students who don't plan to major in course six to feel justifiably confident in their ability to write and read small pieces of code.

和大众意见正相反，我们不希望所有人都变成course，six的主修学生，所以对于那些不在第一梯队里的人来说，我们想做的第二件事情就是,希望帮助还不想,主修这门课的人,都能获得在自己能力范围内,读写小编码的自信。

麻省理工公开课 - 计算机科学及编程导论课程节选