We'll talk more about this later, but it often happens that when you change your program to solve one problem you break it, and things that used to work don't work.
我们以后会更多的去讨论者一点,但是经常发生的情况是当你因为,一个问题修改你的程序的时候,你修改了程序,但原来没问题的模块。
I just want to make mention of this in case there's ever doubt, generally parentheses do solve your problem as an arithmetic but do realize this is some lower level details we'll come back to over time.
是想告诉大家如果你对某些式子的前后运算关系不确定,就加上括号,这都是一些小细节,我们以后还是会再提到的。
That's, in turn, because this guy's being pushed by the 10 Newtons, but that's not your problem.
反过来,因为这个物体被 10 牛的力推着,但和你没有关系
You can talk about working hard on your joint problem sets, but as long as you go home and you don't work hard, it doesn't help.
你大谈特谈你在多么努力地做家庭作业,但是回家后如果你依旧偷懒,这还是无济于事
The grades for the course will be assigned roughly, and I use the word roughly because we reserve the right to move these numbers around a little bit, but basically in the following percentages: 55% of your grade comes from the problem sets, the other 45% come from the quizzes.
课程的评分将会很严格,我用严格这个词儿,是因为我们保留,微调分数的权利,但是基本在以下范围内:,55%的分数来自于问题的提出,另外45%来自于测验。
So, if you have panic attacks, say, it's true that drugs might make the panic attacks go away, but the panic attacks are actually not your real problem.
比如说,如果你患上了恐慌症,或许药物确实能够治疗恐慌症的症状,但是恐慌症的症状却并不是你真正的问题。
Do you think I should neck or not? I shall not enter the kingdom of heaven anyway so I don't see what difference it makes.'" And then she writes back, Mary Brittle: "Dear Sabbath: Light necking is acceptable, but I think your real problem is one of adjustment to the modern world.
你认为我是该做还是不该做,我反正都上不了天堂了,因此,我认为做不做都无所谓,之后她给她回信了,玛丽-巴瑞特,亲爱的萨巴斯,你的做法是可接受的,但我认为,你真正的问题是无法融入现代社会。
But if you are so inclined whether for this problem set or any other throughout the term, you can change your mind week to week.
但是如果你倾向哪套题,那么你可以按周改变想法。
But just realize as a teaser coming for problem set 1 will be instructions on how to activate your so called cloud account and it's on the CS50 cloud that you'll be writing your programs, compiling your programs, testing your programs, running your websites ultimately.
如果大家觉得难的话,习题集1上有一些说明,教你如何,激活你的云账户,因为你们只有在CS50云上才能编写程序,编译,检测,并最终运行。
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