be clear-mind in dealing with matters of great importance; sober-minded with regard to major issues of principle
Related Translations:
大事: 1.(重大的事) great event; major event; important matter; major issue 短语和例子关心国家大事concern oneself with affairs of state; 头等大事 a matter of prime or paramount importance; 这本新辞典是今年文化界的大事。 the new d