can be counted on the fingers of one hand

例句：

1. 1. I canswim well in the sea.
   我在海里游泳游得很好。
2. 2. Can you help me with thisproblem?
   你能帮我解决这个问题吗？
3. 3. She can speaktwo languages fluently.
   她能流利地讲两种语言。