needle passage

例句：

1. 1.The needle passage was blocked, preventing the needle from penetrating the skin.
   针孔通道被堵塞了，导致针无法穿透皮肤。
2. 2. The microneedle passage is a promising technology for delivering drugs directly into the skin.
   微针通道技术是一种将药物直接输送到皮肤的有前景的技术。
3. 3.The needle passage was used to create a temporary tattoo on her arm.
   针孔通道被用来在她手臂上制作一个临时纹身。