baseline
n (sport 体) line marking each end of the court in tennis or the boundary of the running track in baseball (网球场的)底线; (棒球场的)垒线. =>illus at tennis 见tennis之插图.
Of course he is. He's very successful. He's made lots of records. They broadcast a programme of his music last month on the radio. Why don't you come on Saturday? I think you'd enjoy it.