on a grander

on a grander 谁能帮忙详细分析下这句话,包括其结构和意思.That is why, in a famous passage, he defends the study of the 'lower' animals and how they work as being as worthy a human study as the grander stury of the heavenly bodies. on a on a on a on a On a ropeway On a ropeway a book on.. on a biaycle是什么意思 play a joke on have a crush on on a vacation是什么意思 put on a party Half On A Baby Get a crash on put on a cap on a serious on a personal note