pen arm

例句：

1. 1. She held the pen carefully towrite her name on the paper.
   她小心翼翼地握着笔在纸上写下自己的名字。
2. 2. The writerused his pen arm to hold the pensteady.
   那位作家用他的笔的手臂稳稳地握着笔。
3. 3. The artist's penarm was so skilled that he could drawa beautiful landscape in just a few strokes.
   这位艺术家的笔的手臂非常熟练，他只需几笔就能画出美丽的风景。