People were having fun in the pool, swimming or just splashing around.
人们在游泳池里或者游泳，或者只是拍打戏水，开心地玩着。
He barged in on us while we were having a meeting.
我们正在开会，他闯了进来。
The children were having fun, chasing each other's shadows.
孩子们追逐着彼此的影子，玩得很开心。
They were having breakfast when I arrived.
我到达时他们正在吃早饭。