1(in tennis, badminton, and other sports) a line on a court marking the limit of the area into which the ball must be served.
（网球、羽毛球等运动的）发球线
Example sentencesExamples
With a bit of clever footwork we managed to get great seats right behind the service line so he'd see our flag.
The wind forced the players to step back several times from the service line and dodge paper and plastic debris blowing onto the court from the stands.
A double fault on 15-30 gives Serena two match points - and she duly converts them when Mauresmo fires a forehand wide of the service line.
It's supposed to be 21 feet from the net to the service line and then 18 feet to the baseline.
After a four-set loss to Italy in their first game, the Americans put on an impressive show on defense and especially at the service line.
1.1(especially in handball and paddleball) a line on a court marking the boundary of the area in which the server must be standing when serving.
（尤指手球、板手球运动的）发球线
Definition of service line in US English:
service line
nounˈsərvəs līn
1(in tennis, badminton, and other sports) a line on a court marking the limit of the area into which the ball must be served.
（网球、羽毛球等运动的）发球线
Example sentencesExamples
It's supposed to be 21 feet from the net to the service line and then 18 feet to the baseline.
A double fault on 15-30 gives Serena two match points - and she duly converts them when Mauresmo fires a forehand wide of the service line.
With a bit of clever footwork we managed to get great seats right behind the service line so he'd see our flag.
After a four-set loss to Italy in their first game, the Americans put on an impressive show on defense and especially at the service line.
The wind forced the players to step back several times from the service line and dodge paper and plastic debris blowing onto the court from the stands.
1.1(especially in handball and paddleball) a line on a court marking the boundary of the area in which the server must be standing when serving.