舞踊的英文：
leap
v. 跳跃；迅速进行，立即着手；突然发生；（使）跳过，（使）跃过
n. 跳跃；飞跃；跃进；骤变；激增
This is the leap once of process of cognition.
这是认识过程的一次飞跃。
Knowledge advances by steps not by leaps
知识的获得是循序渐进而不是突飞猛进的
Learn to creep before you leap
循序渐进
Can you leap the wall?
你能跳过墙吗？
Look before you leap.
先看再跳。