To be honest, especially those of you less comfortable here, if you've ever struggled with some program or struggled with some piece of software, oh it's alright, it's not your fault.
说实话,尤其是对那些在这里上课有些吃力的同学,如果你曾经使用哪个程序或软件有困难,好吧,那不是你的错。
哈佛公开课 - 计算机科学课程节选
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