You have to be comfy on camera but this is your first chance to say hello to mom and dad on camera.

在镜头前表现得自然点儿,因为这是你第一次在电视上跟爸妈打招呼。

哈佛公开课 - 计算机科学课程节选

I stepped away for only 15 minutes to say hello to everyone.

我走开了15分钟跟大家打招呼。

Where 实战 - SpeakingMax英语口语达人

Her name is pronounced Cansu so she will appreciate your keeping that in mind when you say hello to her in person, Cansu being our head TF.

她的名字叫Cansu，她会很感谢你,因为你跟她打招呼的时候，记住了她的名字，顺便说一下，Cansu是我们的TF头。

哈佛公开课 - 计算机科学课程节选

I have to go say hello to her.

我得去跟她打个招呼。

I will实战 - SpeakingMax英语口语达人

So we'll say hello to you later, if need be.

所以我将随后跟你说hello，如果需要。

哈佛公开课 - 计算机科学课程节选

So if you haven't already, just glance at the person next to you, or say hello if you don't know them.

如果你还没有做好，那就看看你旁边的人,如果你不认识他们就跟他们打个招呼。

哈佛公开课 - 计算机科学课程节选

There's a whole bunch of blocks that we'll look at in more fun detail on Friday but I'm going to pick the easiest one here and I'm going to type Hello CS50 in this string, "Hello CS50", zooming in say how nice the puzzle pieces are nicely interlocked?

今天我们看到的各种图块,到下周五我会仔细讲解其中的精妙之处,但今天我只想举一个最简单的例子,我要在这儿键入字符串，放大窗口，然后看看这漂亮的图形和文字,是如何美妙地连结在一起的？

哈佛公开课 - 计算机科学课程节选

It's going to say hello and I can change this here.

它将要显示Hello，我们改变它。

哈佛公开课 - 计算机科学课程节选

So it turns out a really nice shortcut on most systems, oops, is to say if you have a file called hello.c and you wanna turn it into a program called hello, well, make hello just write in the command makeHello and it will do all of that for you automatically and hand you a program called hello.

就是寻找一种能在大多数系统上运行的更快捷的方式，哇！,也就是说，你有一个hello，c的文件,你想把它变成一个名为hello的程序，那么只需要敲入命令,它就会自动为你生成,一个hello程序。

哈佛公开课 - 计算机科学课程节选