roy·al ten·nis
noun/ˌrɔɪəl ˈtenɪs/
/ˌrɔɪəl ˈtenɪs/
(Australian English) (North American English court tennis, British English real tennis)
[uncountable]- an old form of tennis played inside a building with a hard ball
庭院网球（使用硬球的旧式室内网球运动）