英文字迷Thespineofapuzzle,itssecretandcodeArocklikethissolvesitandunlocksitslode...Twopartstoitsname,thefirstoneatoneOnerhymeswith"we",theotherwith"lone"alreadyknownthespellingoftheanswerismadeby8letters:"

Question

英文字迷
The spine of a puzzle,its secret and code
A rock like this solves it and unlocks its lode...
Two parts to its name,the first one a tone
One rhymes with "we",the other with "lone"
already known the spelling of the answer is made by 8 letters:
"E E K N O S T Y"

Answer 1

keystone
意思是（拱门的）拱心石、楔石.这种石头是整个拱形门的核心部件,因为它对分散拱门压力有很大作用,拱门之所以牢固就是因为它,因此这个词的引申意是主旨、基本原则、基础.
The spine of a puzzle,its secret and code
A rock like this solves it and unlocks its lode...
Two parts to its name,the first one a tone
One rhymes with "we",the other with "lone"
already known the spelling of the answer is made by 8 letters:
"E E K N O S T Y"