I wasn't sure whether to laugh or to reciprocate with a remark of my own.

我不知道是该笑一笑还是该说点什么作为回应。

《牛津词典》

I don't know whether to laugh or to get angry.

我不知道该大笑还是该发火。

youdao

"Where is he?" Katia asks, not knowing whether to laugh or not.

“他在哪儿？”卡蒂娅问，她不知道是不是该笑出声。

youdao

During minute two Baby cried and we went to get him, uncertain whether to laugh or cry.

FORBES: Tim Tebow, Soledad O'Brien and My Not So Pretty Balancing Act

"This one is going to take some time to sink in, walking round the ground seeing family I don't know whether to laugh or cry, it's a really special moment, " said Flintoff.

BBC: Strauss savours famous Ashes win

Add to that his call for a referendum to bring back the franc and to take France out of the European Union, and the mainstream parties are unsure whether to laugh or cry.

ECONOMIST: The French elections