acicular troostite

例句：

1. 1.The acicular branch of the tree is delicate and graceful.
   这棵树的细长分支既优雅又纤细。
2. 2. The acicular grasses are known for their ability to survive in harsh environments.
   这种细长的草类植物因其在恶劣环境中生存的能力而闻名。
3. 3. The acicular crystals are often used in jewelry making due to their beautiful color and clarity.
   这些细长的晶体因其美丽的颜色和透明度而被广泛用于珠宝制作。