finger lifter

例句：

1. 1. This finger lifter is perfect for people with arthritis.
   这个手指提升器非常适合关节炎患者。
2. 2. The doctor gave her a finger lifter to help her move around more easily.
   医生给她一个手指提升器，帮助她更容易地移动。
3. 3.She used the finger lifter to hold her coffee cup while she was waiting for her friend.
   她在等待朋友的时候用手指提升器握住咖啡杯。