sad的副詞

　　Sadly, there is nothing there.

　　可惜的是，一無(wú)所獲。

　　He answered my question sadly.

　　他悲傷地回答我。

　　But, sadly, sometimes it happens.

　　然而，不幸的是，它有時(shí)偏偏也會(huì)發(fā)生。