cam finger

例句：

1. 1.I need to press the button on theremote control with my finger.
   我需要用手指按下遥控器上的按钮。
2. 2. She pressed her finger againstthe door to open it.
   她用手指按着门打开它。
3. 3. The doctor asked me topress my finger against my tongue to checkfor a sore throat.
   医生让我用手指按在我的舌头上检查喉咙是否有痛感。