1. 悔恨地,遗憾地：reject v. 陈述 | regrettably 悔恨地,遗憾地 | release v. 释放;发布;放开
2. 抱歉地：regrettable 可叹的 | regrettably 抱歉地 | regrind 再磨研
3. 遗憾地：regrettable 可惜的 | regrettably 遗憾地 | regrettably 可惜地
4. 可惜地：regrettably 遗憾地 | regrettably 可惜地 | regrind 磨配
1. Regrettably, policymakers have so far failed to explicitly expound the purpose of the property tax.
2. Regrettably, several Japanese politicians have been taking advantage of the energy dispute to stir nationalistic sentiment.
3. Women are offered legal protection in China, but regrettably they are not extensive enough or put into practice.
4. Instead of stepping up efforts to build more resettlement houses, the local government regrettably slid further along the wrong road.
5. To a certain extent, it does regrettably reignite an unnecessary ideological confrontation.
6. regrettably
6. These measures however, have regrettably failed to deal with the central issue of a shortage of larger units.
7. Unfortunately and regrettably, such a biased report undermines all of these.
8. Therefore, regrettably we had to deny the requests at that time.
9. Regrettably, there has not been an effective examination of such local regulations.
10. Also regrettably, a Japanese group conducted a survey around the disputed islands.
adv
1. by bad luck
e.g. unfortunately it rained all day
alas, I cannot stay
Synonym: unfortunately unluckily alas