“领先”的英语可以翻译为：e in the lead，(take the) lead，in the highest flight，keep ahead，on top ...

“先驱的”的英语可以翻译为：pioneer，precursory ...

先辈们的丰碑最能奋勉人心的.The monuments of men's ancestors were the most impressive exhortations.人们失去了他们先辈的朴实,他们应该为此而感到懊丧.One may regret to have lost the simplicity of one's forefathers.他跟随着先辈的足迹前进.He followed in the steps...

我们是先头部队, 大军随后就到.We are the advance detachment. The main forces will be here soon.我们派出一支先头部队.We sent out an advance party of soldiers.美军是这次进攻的先头部队.American troops formed the spearhead of the attack....

“女祖先”的英语可以翻译为：ancestress，foremother ...

“早先的”的英语可以翻译为：previous，aforetime，early ...