英语语法分析

Archaeological study of wood charcoal found in hearths dating to the various episodes of occupation indicated that the species use changed in a patterned way.

考古研究发现，在壁炉中发现的木炭可以追溯到不同的时期，这表明物种的用途发生了模式上的变化。

A little longer shall your city walls separate your hearths from your fields.

你们的城墙还会把你们的房屋与田野隔开一段时间。

This animal skin over wood frame structure included two entrances and two hearths.

该建筑由动物皮毛覆于木质框架而制成，有两个入口和两个火塘。