网球duce：

"Duce" is a term used in tennis to indicate that the score is tied at 40-40. It comes from the French word "à deux" which means "at two", indicating that both players have won two points each. When the score is tied at deuce, the next point won by a player is referred to as "advantage" and they must win one more point to win the game. If the opposing player wins the next point, the score returns to deuce.

网球器材：

你好！你对网球器材有什么问题或者需要了解的吗？我可以帮你解答。