Most speakers think they need to use multimedia graphics or hi-tech gadgets to hold the audience's attention.

大多数演讲者认为他们需要使用多媒体图像或者高科技的小玩意来保持观众的注意。

youdao

Keep it simple: "Hi", "Hey" or "Hello"—do the best you can to gather all of the enthusiasm and energy you can, put on a big smile and say "Hi".

保持简单地说：“嗨、喂或你好”——尽你所能地集中所有的热情和精力，笑容满面地说“嗨”。

youdao

So keep it simple: "hi", "Hey" or "Hello"—do the best you can to gather all of the enthusiasm and energy you can, put on a big smile and say "Hi".

所以简单点说：“嗨”、“嘿”或“你好”——尽你所能调动你所有的热情和能量，露出一个大大的笑容并说“嗨”。

youdao

I think they're purple or so in scratch, or yeah, purple, I think, generally; say hi, for two seconds.

我觉得在scratch中，它们是华而不实的，我觉得，通常，显示hi，只要两秒钟。

哈佛公开课 - 计算机科学课程节选

So a loop or an infinite loop, because true is always true, there is no-- nothing on the screen that seems to change this keyword true, so this is actually a deliberate infinite loop, but so was that thing up top to forever say hi or whatever it is you wanted to do.

因此而出现死循环，屏幕上的这些语句无论怎么运行,都无法改变它为真的事实，这就是所谓的死循环，无论你想不想要,屏幕上都会不断打印出“hi“

哈佛公开课 - 计算机科学课程节选

Occasionally you might even want to say hi or offer congratulations and condolences on various life events.

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With the new Spotify app, people no longer need to fuss about connecting cables from their laptop or tablet to Hi-Fi equipment.

ENGADGET: Samsung partners with Spotify, brings streaming music to its 2012 Smart TVs in Europe

On the other flank, many people who use e-mail decided a long time ago to go with nothing at all, or with "Hi" (followed by the recipient's name), as a reflection of the new informality and ease of note-writing.

CNN: Is 'Dear' dead?