遗憾的是

Unhappily, he never saw that girl again.

遗憾他再也有见到过那女孩。

It's a pity that the spitbox in the pit was hit and split.

遗憾西方经济学论文坑内痰盂被打裂.

Unfortunately,no questions from the audience broke the continuity of his harangue.

令人遗憾,有听众提出问题来打他高谈阔论。

One of many sadnesses in his life was that he never had children.

他一生多遗憾之一有子女。

Regretably, I cannot watch the lively scene in the meeting and the presents distributed by companies present at the meeting .

遗憾未能看到此次展会火爆场面和参展商派发赠品。