People were having fun in the pool, swimming or just splashing around.

　　人們在游泳池里或者游泳，或者只是拍打戲水，開(kāi)心地玩著(zhù)。

　　He barged in on us while we were having a meeting.

　　我們正在開(kāi)會(huì )，他闖了進(jìn)來(lái)。

　　The children were having fun, chasing each other's shadows.

　　孩子們追逐著(zhù)彼此的影子，玩得很開(kāi)心。

　　They were having breakfast when I arrived.

　　我到達時(shí)他們正在吃早飯。