球场 (qiúchǎng) means "sports field" or "playing field" and refers to any venue where ball sports are played, such as a soccer pitch or basketball court. It is composed of 球 (ball) and 场 (field/ground), making it easy to remember as "ball field."
周末我们去球场踢足球吧。
Zhōumò wǒmen qù qiúchǎng tī zúqiú ba.
Let's go play soccer at the field this weekend.
这个球场刚刚翻新过,草坪特别好。
Zhège qiúchǎng gānggāng fānxīn guò, cǎopíng tèbié hǎo.
This field has just been renovated, and the turf is especially nice.
球场上挤满了观看比赛的观众。
Qiúchǎng shàng jǐ mǎn le guānkàn bǐsài de guānzhòng.
The field was packed with spectators watching the game.