regrettably
01
遗憾地, 不幸地
in a manner expressing sorrow, disappointment, or a sense of apology
例子
The manager informed the team that, regrettably, the project deadline would need to be extended.
经理通知团队，遗憾的是，项目截止日期需要延长。
词汇树
regrettably
regrettable
regret
