Some experts even consider lying a developmental milestone, like crawling and walking, because it requires sophisticated planning, attention and the ability to see a situation from someone else5 s perspective to manipulate them.
2019年12月六级真题(第一套)阅读 Section C
柯林斯高阶英汉双解学习词典释义
VERB
爬;爬行;匍匐前进
When you crawl, you move forward on your hands and knees.