They marked out a tennis court on the lawn.

他们在草坪上标出网球场。

《牛津词典》

Try out for a local sports team such as volleyball, tennis, lawn bowling, or whatever interests you.

尝试参与当地的体育运动队伍，如排球、网球、草地保龄球或其他你感兴趣的体育运动。

youdao

Or I see a chartreuse-yellow tennis ball on the lawn, pick it up and throw it.

否则我的目光会落到草坪上的淡黄绿色的网球上，捡起来，扔出去。

youdao

The Obamas can also play tennis on a court on the South Lawn, hit a few golf balls on the putting greens or run around the jogging track.

VOA: special.2009.05.08

Head of women's tennis at Britain's Lawn Tennis Association (LTA), Nigel Sears, told CNN the slippery nature of the clay surface also set it apart from other types of court.

CNN: Tennis interactive: Why clay is so different

"Any sport is a pressure cooker and I don't think tennis is unique in that, " says sport psychologist Craig Mahoney of Northumbria University, who worked for the Lawn Tennis Association for seven years.

BBC: Why are tennis players so badly behaved?

Most of that is given to the Lawn Tennis Association to invest in developing British tennis.

CNN: Wimbledon bonus for tennis stars