As any schoolchild can tell you, the planet is blue.

任何一个学童都能告诉你，地球是蓝色的。

For every Korean schoolchild , Koguryo was one of Korea's three founding kingdoms.

对于每一个朝鲜学童来说，高句丽是古代朝鲜三国之一。

On the typical days, she was a schoolchild.

在通常的日子里，她还是个小学生。

It is now known to every schoolchild that the earth is round.

现在每个小学生都知道地球是圆的.

Why, every schoolchild knows the answer, You spell out the words.

为什么，每个小学生都知道答案,你拼写出单词。

That led to people like her, which, now -- she is a child who is a schoolchild.

这导致很多像她一样的人，那些学龄儿童没钱读书了。

All you really need to house such schoolchild-friendly exhibits is a big windowless black box.

你也需要如此一个黑盒子来向你的朋友们展示。