1.The breadcrumbs were charred and burnt, which is how they survived for so long.

char 烧焦

Toast hazelnuts on a baking sheet until the skins char.
在烤盘上烤榛子直到外皮烤焦(Op9lgxx]A,*hx=R,)。

2.They were hunter gather and lived thousands of years before humans settled down to become farmers.

settle down 安定下来

I want to get boxing out of my system and settle down to enjoy family life.
我想结束拳击生涯，安定下来享受家庭生活eTv@crK3c!(。

6^#2Qqe*Z)*YP+^HJ=j)8CTowhIsa+XRNQ1FN 来源:可可英语 http://www.kekenet.com/broadcast/201807/559901.shtml