That's a big goal, and you might wonder why trees are so important.

这是一个很大的目标，你可能想知道为什么树木如此重要。

youdao

They do the big step of inventing vowels, so that now you don't have to remember anything.

他们在发明元音方面迈出重大一步，所以现在你不必去记任何东西。

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

"The reason is that those plants are going to get so big that if you were to put three or four or six plants in, they are just going to be crowding each other out, and each plant is going to underperform."

VOA: special.2011.06.14

So it doesn't matter how big the dictionary is, you can instantaneously retrieve the value associated with the key. Extremely powerful.

因为你可以在线性时间，内得到想要的键对应的值,这太强大了。

麻省理工公开课 - 计算机科学及编程导论课程节选

I wrote it down your notes, if you can put a big star next to it so you don't forget this.

我写在了你们的讲义里，如果你们在旁边画上一个,大星号就不会忘记了。

麻省理工公开课 - 化学原理课程节选

So you know, you've lost this big piece of your body that you're so used to carrying around.

NPR: Craig DeMartino: Winner in the Extremity Games

"I won't make a hat so big you can't get through the door to the facilities, " said Ms. Singer, the Lexington, Ky.

WSJ: Hatmaker Polly Singer | 60 Seconds With

This is what you get for growing so big, so fast.

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