After all, these three forms of progress have gone together in a number of states and civilizations.
毕竟,在许多国家和文明中,这三种形式的进步是并存的。
2
Number words and their written forms transform our quantitative reasoning as they are introduced into our cognitive experience by our parents, peers and school teachers.
Earth's surface is not made up of a single sheet of rock that forms a crust but rather a number of "tectonic plates" that fit closely, like the pieces of a giant jigsaw puzzle.