act of the seller的用法和样例：
- She worked over the first act of the play.
- An act of emptying, as of the bowels.
- The seller guarantees that the instrument contract for will be made of the best material with first-class workmanship.
- The critics wrote up the acting of the players.
- In the second act of the play the plot thickens.
- Conferment of an honor is an act of the Queen.