sadly
adv. 悲哀地；悲痛地
例句
Sadly, bamboo plants die after flowering.
令人遗憾的是，竹子开花后就会死亡。
《柯林斯英汉双解大词典》
Sadly, both he and my mother died of cancer.
令人悲伤的是，他和我母亲都死于癌症。
Sadly when the lid of the boot sprang open, it was empty.
可惜，当后备箱盖弹开时，里面是空的。
