bake sale       
noun [ C ] mainly US uk/ˈbeɪk ˌseɪl/ us/ˈbeɪk ˌseɪl/
 (为筹集资金而进行的)烤饼义卖
an event where people sell cakes and other baked goods that they have made in order to raise money to help a particular cause
  The school bought new equipment with money raised through bake sales and raffles. 通过烤饼义卖和抽奖活动筹集到的资金帮助学校购买了新设备。 
 See also: cake sale
 - More examples
 - It is a sad day when the meagre amount we make at bake sales and book fairs is used to supplement the salaries of school staff.
 - The bookstore sponsors bake sales that benefit local schools.
 - She spends much of the year cooking tacos, tamales and empanadas that are sold at bake sales in hopes of raising the estimated $6,000 they need to create a grand celebration.
 - Love them or loathe them, the bake sale is a regular fundraising event at preschools and primary schools across the country!