hard-nosed
adjective uk/ˌhɑːdˈnəʊzd/ us/ˌhɑːrdˈnoʊzd/
执着的,顽强的
practical and determined
His hard-nosed business approach is combined with a very real concern for the less fortunate in society. 他既有执着的工作态度,同时又对社会上的不幸者怀有真切的关爱。
Synonyms: practical pragmatic