“遗憾”造句

“恐怕他生病了。”——“真是遗憾。”
"I'm afraid he's ill." — "I'm sorry to hear that."

我很遗憾,这几乎完全是一厢情愿的想法。
This, I am sorry to say, is almost entirely wishful thinking.

遗憾,我们不得不让住户挤在这些狭小的公寓里。
Regrettably we have to house families in these inadequate flats.