nail-file

例句：

1. 1. She used a nail file to smooth the surface of the wooden table.
   她用指甲锉平滑了木桌的表面。
2. 2.The nail file was too small for her to use comfortably.
   那个指甲锉太小，她用起来不舒服。
3. 3. He used the nail file to clean the edges of his nails before painting them.
   他在涂指甲之前用指甲锉清理了指甲的边缘。