—What does the stuff on your T-shirt mean? —It's nothing. Just something off the top of my head.

——你 T 恤上的东西是什么意思？ ——没什么，只是我即兴想到的。

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The three boys threw their hockey gear to the top of the hill and tried crawling up the path, but the sleet had created a smooth glacier with nothing to hold on to.

三个男孩儿把他们的冰球装备扔到山顶上，然后试着沿小路往上爬，但雨夹雪已经令山坡变得更加的滑，而且没有任何可以抓住的东西。

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If Google truly wants to design a new "windowing system on top of a Linux kernel", there should be nothing to stop the search giant from collaborating openly with the best in the business.

如果Google真的想要设计一个新的“Linux内核的桌面操作系统“，应该没有什么可以阻碍这一搜索引擎巨头和行业内佼佼者合作。

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A state where it's closed, so imagine a channel with a lid on top of it; when it's closed nothing can go through the channel, when it's open then things can go through.

一种是闭合状态,想想一个有盖子的通道吧,当盖子合上的时候任何东西都不能通过,而打开时就畅通无阻

耶鲁公开课 - 生物医学工程探索课程节选

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