glacial valley (galical-carved valley)
The super-wisdom valley The Bo Ruo Valley
The super-wisdom valley(The Bo Ruo Valley)
U-shaped valley(U-valley)
V-shaped valley(V-valley)
Be Happy to Learn and Comprehend by Themselves
generalized happy number
happy
幸福
快乐
Happy剖析器
快乐的
忻
高兴
愉快的
乐意的
欣
美好
块
畅
喜悦
乐
欢
欢乐
邴
愉快
哿
快活