regrettably
adv
1 in a regrettable way 惋惜地; 遗憾地; 可悲地
a regrettably small income 少得可怜的收入.
2 it is to be regretted that 十分遗憾; 遗憾的是
Regrettably, the experiment ended in failure. 很遗憾, 该试验最後失败了.
🗣️ 情景例句
I was wondering if you could help me. I'd like to know.