对于这些画的神秘起源和意义，学者们提出了三种相关但不同的观点。

Scholars offer three related but different opinions about the mysterious origin and significance of these paintings.

youdao

“你可以抽三根，”国王回答说，“但不要以为我会饶了你的命。”

"You may smoke three," answered the king, "but do not imagine that I will spare your life."

youdao

当我看到你们双双坐三轮车驶向市区的时候，先时不以为意，但不久，我慢慢地感觉到些端倪。

I did not take it to heart when I first saw you two sitting on a tricycle heading for town, but soon I sensed something wrong there.

youdao

Well, that's a beat of basically a duple meter with a triple subdivision, but we're not getting into triple subdivisions here.

这就是个典型的二拍子,伴随一个三拍子的进一步划分,但我们这里不讨论三拍子的进一步划分

耶鲁公开课 - 聆听音乐课程节选

Between two and three and four and so on is not very different.

但二维,三维和四维,以及其它维数间的差别就不那么大了

耶鲁公开课 - 基础物理课程节选

Typically--I don't know for those particular children, but typically on those tasks three-year-olds and young four-year-olds tend to fail, and around the age of four or five kids tend to succeed.

我不太了解那些特定儿童的情况,但一般来讲,三岁和刚进入四岁的儿童,通常会在这些任务中失败,而四岁或是五岁左右的儿童则通常会成功

耶鲁公开课 - 心理学导论课程节选