剃头挑子一头热

التقليدي: 剃頭挑子一頭熱

1. lit. only one end of the barber's pole is hot (idiom)
2. fig. one-sided enthusiasm
3. one party is interested, but the other, not so much
4. (Note: In former days, street barbers carried their equipment on a pole, with tools and a stool at one end and a brazier at the other.)