The children play indoors when it rains.

下雨时，孩子们在室内玩耍。

youdao

Tennis is a sport we sometimes play indoors.

网球这种运动我们有时也在室内进行。

youdao

Meanwhile parents have also been asked to ensure their children play indoors during the three-hour period to avoid noise travelling into open windows.

同时，父母要保证孩子在午休期间在家中玩耍，以免噪音从开着的窗户传出。

youdao

They play indoors. Everything's indoors. And so we're actually starting to see low levels of vitamin D in areas where the sun is plentiful."

VOA: special.2011.01.05

Should teachers be treated like professional football players, whose salaries, job security, and other perks are determined almost exclusively based on individual performance metrics, regardless of the quality of their management, stadiums, equipment, coaching, practice facility, the quality and ambition of their fellow players, their level of fan support, age, health, competition, weather, whether they primarily play indoors or outdoors, or sundry other factors that might empirically affect their performance?

FORBES: What if Teachers Played by NFL Rules?

Indoors, the tablet could be employed to play educational games, update a student blog or record videos, such as a newscast.

FORBES: Dell Pitching 'Streak' Tablet To Schools, Government

Federer is due to play in the Madrid Masters later this month, followed by the Swiss Indoors in Basel, the Paris Masters and Tennis Masters Cup.

BBC: Tired Federer opts to take break