primary nail field

例句：

1. 1. Theprimary nail field is where the fingernailgrows and develops.
   主要指甲区是手指指甲生长和发育的地方。
2. 2. During childhood,children's nails are often trimmedto maintain a neat appearance in the primarynail field.
   在儿童时期，孩子们的指甲经常修剪，以保持整洁的外观，主要指甲区。
3. 3. In some cultures, it is considered bad luckto cut or damage the primary nailfield.
   在某些文化中，剪或损坏主要指甲区被认为是不吉利的。