英语语法分析

Softwoods thrive in the cold, northern regions.

软本分布在寒冷的北方。

The softwoods are such trees as pine, fir and spruce.

松、冷杉、云杉一类的树木是软木材。

There are two main kinds of timber trees-softwoods and hardwoods.

用材树种有两大类——软木材与硬木材。