Talk about the different meanings of the same word in each group of sentences.

1. We all have dexterous hands. Master Wang is really good at his work. His sister is a "March 8th Red Flag Bearer" (the title is "pacesetter"). There are four chandeliers hanging from the ceiling of the auditorium. Grandma often misses her relatives in her hometown. During the Spring Festival, I set off some firecrackers. This well is very deep. The content of this article is too profound. It's late at night, and the teacher is still preparing lessons under the lamp. (indicating that it is late at night)