众所周知，在沙滩上，沙子的城堡是很容易被海浪摧毁的。
We know that, on a beach, sand castles are inevitably and easily destroyed by the tide.
无论是在沙滩上堆起国王城堡还是用泥团做出美味的晚餐，这都是孩子们在学习抽象思维的过程。
Children who can see a king's castle in a mound of sand or a delicious dinner in a mud pie are learning to think symbolically.
我了解海盗，是因为有一天，我正在沙滩上专心致志地造一座沙滩城堡，突然，一艘海盗船驶入了我的视线。
I know about pirates, because one day, when I was at the beach building a sand castle and minding my our my own business, a pirate ship sailed into view.
应用推荐