Under the cover of semi-scientific experiments its practitioners followed a secret tradition.
Under the cover of semi-scientific experiments its practitioners followed a secret tradition.
在半科学实验的掩盖下，炼金术士遵循一个秘密传统。
Under the cover of semi-scientific experiments its practitioners followed a secret tradition.
在半科学实验的掩盖下，炼金术士遵循一个秘密传统。