on a grand scale

• 规模宏大

on a grand scale的用法和样例：

例句

1. The conference was on a grand scale.
   这次大会规模宏大。
2. And then he took the final irrevocable step that established the authenticity of these intentions and assured the safety of the grand council to be assembled.
   接着，他迈出了最后的一步，这一步在一般人心目中，确立了他的和平意图的真实性，同时也保证了即将召开的规模宏大的会议的安全。