Idiom:

Money pit 金钱的陷阱，看起来优惠后期可能存在隐患

Hit the book:
Debut
Detergent
Commercial
Appreciative
Exponential

A soap opera, soapie, or soap is a serial drama and suspense on television or radio which features related story lines about the lives of multiple characters. The stories typically focus on emotional relationships to the point of melodrama.

The first serial considered to be a "soap opera" was Painted Dreams, which debuted on October 20, 1930 on Chicago radio station WGN.

Early radio series such as Painted Dreams were broadcast in weekday daytime slots, usually five days a week, when most of the listeners would be housewives; thus, the shows were aimed at and consumed by a predominantly female audience. In the name, "soap" refers to the soap and detergent commercials originally broadcast during the shows, which were aimed at women who were cleaning their houses at the time of listening or viewing, and "opera" refers to the melodramatic character of the shows.