英语语法分析

First, the Greeks had to marry and mix with the local Ligurians to ensure that Massalia survived, suggesting that they also swapped goods and ideas.

首先，希腊人必须结婚或者与当地的利古里亚人通婚，以确保马赛人人口的繁衍，这足以说明他们也与当地人进行着货物与想法的交换。