手心

例句：

1. 1. She placed her hand on the table to steady herself.
   她把手放在桌子上稳住自己。
2. 2. The child held his mother's hand tightly as they walked home together.
   孩子紧紧地握着母亲的手一起走回家。
3. 3. He placed his hand on the table and leaned back in his chair.
   他把手放在桌上，靠在椅子上。