当你从社区中心大楼的入口进来，你要径直走上前面的楼梯，一直走到顶层。

When you come in through the entrance of the community centre building, you'll need to go straight up the stairs in front of you, all the way to the top.

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他指着离他几英尺远的一棵树说：“我要走到那棵树前面去。”

"I'm going to walk to that tree," he said, pointing to one a few feet away from him.

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她把椅子从桌子旁边拉出来，然后，用一只手扶着他，帮他走到椅子的前面，并舒服地就座。

She pulled the chair away from the table. Steadying him with one arm, she helped him move in front of the chair, and get comfortably seated.

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So in a moment you're going to go ahead and hit the spacebar and then as things fall from the screen when they line up with the left arrow, hit the left arrow with a different arrow, hit that arrow and see how good a score you can get.

一会儿你走到前面，敲一下空格键,当屏幕上面的东西从左边往下掉的时候,你就敲一下键盘上的左键,是哪个方向，敲对应的方向键就可以了,我们来看看你能得多少分。

哈佛公开课 - 计算机科学课程节选