regretfully
01
遗憾地, 懊悔地
used to express a sense of sorrow or remorse
例子
Regretfully, we have to inform you that the event has been canceled due to unforeseen circumstances.
遗憾地, 我们不得不通知您，由于不可预见的情况，活动已被取消。
词汇树
regretfully
regretful
regret
