Every family is bright: every family is bright. When the light is on in the dark. It also describes the night view of the city.

Nothing is lost: description can never go wrong. Use "foolproof".

Crowd: describes many people gathering together.

Shiwan model: Shiwan: many generations, very long; Teacher: It's exemplary. An example worth learning forever.

Wan Xu Qian tou: metaphorically speaking, there are many clues at the beginning of things. It also describes things as complicated and chaotic.

Forever: Buddhism calls the process of the world from generation to destruction catastrophe, which means eternal life. Can never be recovered.