because the food that comes from the soil is essential for life,

因为周围土地上生产的食物是生活必需品
and you can't count on trade to provide it to you with any security.

你不能指望靠贸易来提供任何保障
Later on when times are more secure,

在之后相对安定的年代
there's trade for grain as well for everything else,

有了粮食及其他各种物品交易
but when you're settling a place in the first place,

但当你刚开始在某地定居时
you can't rely on somebody bringing it to you.

并不能指望有人为你供给必需品
You're going to have your own people working it,

你需要自己的人来为此耕作
and bringing it up to you themselves.

为你提供生活所需
So, the citadel and the farmland surrounding it,

因此以城堡和周围的农田为根基
make up fundamentally the unit which is the Mycenaean kingdom.

组成了称为迈锡尼帝国的文明
Well, the first thing that Schliemann found

当谢里曼在迈锡尼城进行挖掘的时候
when he dug at Mycenae was this remarkable circle of graves,

他首先发现的是这圈不寻常的墓穴