Handing Frank a shovel (铲子) with smile, Jack got started together with his brother on their super creation in the sand.

杰克笑着递给弗兰克一把铲子，和他哥哥一起开始了他们在沙地上的超级创作。

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Long ago, when the world was young, a spider was given a pot (罐子) containing all the wisdom (智慧) of the world.

在很久以前，当世界还很年轻的时候，有人给了一只蜘蛛一个装有世界上所有智慧的罐子。

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"Ten years ago, when the science on the climate issue was first increasing, the influences could be seen as an issue for future generations (子孙后代)," Katharine, a climate scientist, told The New York Times.

“十年前，有关气候问题的科学首次增多时，其影响可被看作是子孙后代要面临的问题。”气候科学家凯瑟琳对《纽约时报》说道。

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So, if we look at what the other sub shells are called, essentially we're just converting the number to a letter.

我们来看看,另外的子壳层叫什么，本质上，我们就是把数字转换为，一个字母。

麻省理工公开课 - 化学原理课程节选

That difference has functional consequences for the daughter cells in that one of the daughter cells becomes what's called here a committed progenitor cell.

而这些差异会导致子细胞,产生一些功能上的变化,其中一个子细胞会成为,所谓的定向祖细胞

耶鲁公开课 - 生物医学工程探索课程节选

It's going to be a dipole. This is plus; this is minus.

这是个偶极子，这里是正，这里是负。

麻省理工公开课 - 固态化学导论课程节选