arrow_backТоль бичиг рүү буцах
keystone
/ˈkiː.stəʊn/
B2нэр үг
Монгол орчуулга
тулгуур чулуу
menu_bookТайлбар
- 1a central cohesive source of support and stability
- 2the central building block at the top of an arch or vault
format_quoteЖишээ
- faith is his anchor
- the keystone of campaign reform was the ban on soft money
