Redwood second

例句：

1. 1. The redwood second class is the most expensive type of redwood available.
   红木第二类是可获得的最昂贵的红木类型。
2. 2. The redwood second class is used for furniture and flooring.
   红木第二类用于制作家具和地板。
3. 3. The redwood second class is highly sought after by collectors.
   红木第二类受到收藏家的高度追捧。