lamentably

例句：

1. 1.She lamented the loss of her childhood friends.
   她悲哀地失去了童年的朋友。
2. 2.The decision was made regrettably.
   这个决定是遗憾地做出的。
3. 3. The tragedy occurred lamentably.
   这场悲剧发生得悲哀。