spruce sulfite extract

例句：

1. 1. The forest was full of pine trees.
   森林里满是松树。
2. 2.The cedar tree is known for its durability and resistance to decay.
   雪松因其耐久性和抗腐烂能力而闻名。
3. 3. Fir trees are commonly found in the mountains and provide shelter for wildlife.
   松树常在山区生长，为野生动物提供庇护。