have fun.have a good time.have a great time.have a wonderful time.enjoy oneself.

This means that you enjoy having a good time.也就是說，你喜歡玩得快樂。I hope you"ll enjoy yourselves.希望你們玩得高興。We had a good time (in) playing tennis.我們打網球打得很開心。I think I will have a great time this weekend .我想我這個週末將有一個美好的時光。

玩得很開心的英文的三中表達方式：have a nice time、have a lot of fun、Have a good time fun。

例句：

1.They have made arrangements that we visit the Great Wall tomorrow. I believethat we are sure to have a good time there. 他們已安排好讓我們明天去遊覽長城。我相信我們在那兒一定會玩得很開心。

2.After all, the point of these activities is to have a good time. If you know you won"t, there"s no reason to play. 畢竟這些活動的目的是使自己開心，如果你認為你不會開心，那麼沒有理由去玩。

拓展資料：

英語（English）是印歐語系-日耳曼語族下的語言，由26個字母組成，誕生於日德蘭半島和萊茵河流域，透過英國的殖民活動傳播到了世界各地，後因英美兩國經濟、軍事和政治的世界領先地位而成為一種國際語言。