The one is, you can say to someone, a penny for your thoughts.
一个是， 你可以对某人说，一分钱用于你的想法。
英语百科
A Penny for Your Thoughts
"A Penny for Your Thoughts" is episode 52 of the American television anthology series The Twilight Zone, written by George Clayton Johnson. It originally aired on February 3, 1961 on CBS.