Most natural ruby from Asia (myanmar, Thailand and Sri Lanka), Africa and Australia, the United States, Montana and south Carolina have a bit.

天然红宝石大多来自亚洲(缅甸、泰国和斯里兰卡)、非洲和澳大利亚，美国蒙大拿州和南卡罗莱那州也有一点。

youdao

Most natural ruby from Asia (myanmar, Thailand and Sri Lanka), Africa and Australia, the United States, Montana and south Carolina have a bit.

天然红宝石大多来自亚洲(缅甸、泰国和斯里兰卡)、非洲和澳大利亚，美国蒙大拿州和南卡罗莱那州也有一点。

youdao