acicular uncinus

例句：

1. 1. The plant has acicular leaves that are used for making baskets.
   这种植物有尖刺的叶子，用于制作篮子。
2. 2. The acicular thorns on the rose bushes can be painful to touch.
   玫瑰灌木上的尖刺可能会刺痛人。
3. 3.The acicular structure of the coral allows it to filter out harmful substances from the water.
   珊瑚的尖刺结构使其能够过滤掉水中的有害物质。