她同孩子们一起嘻嘻哈哈地说笑话。

She was laughing and joking with the children.

穷苦的小孩开始在街上嘻嘻哈哈地玩了。

The poor children laugh and play in the street.

是啊，况且都那么“呲”，学车的时候一车人总是唧唧嘎嘎嘻嘻哈哈的。

We are same kind of happy people. During the time in learning, our coach car was always full of laughing and joking.

这可能是后面我让考官哈哈大笑的原因，因为本身我也不太“正经”，平时和别人交往也是嘻嘻哈哈的。

Maybe that is why I could make the interviewer laugh happily. Actually I am not a very serious man in life and often play around with my friends.

他稍微有点烦恼的是，一对太过于完美的配偶的忸怩作态可能要比嘻嘻哈哈的夫妻留下深刻的印象。

His only tiny worry was that a too perfect couple might come across as more cutesy than ha-ha funny.