为什么是in the basketball court而不是 on?

为什么是in the basketball court而不是 on? on the basketball court 还是at on the basketball court I often play basketball on the basketball court after class. the basketball court 前面用什么介词 没把握就别说 in & on 英语翻译What's true on the basketball court is true in business 为什么是on the sofa,而不是in the sofa? “basketball court” 前用什么介词?in还是on? the game is _____(play)on a basketball court. How many basketball player can be on the court 为什么是on Friday afternoon而不是in the Friday afternoon in court 还是on court? 坐地铁为什么是on the tube而不是in the tube