Correct

放怀

/ fàng huái /
Strokes

Example

As a Verb

do sth to one's heart's content

1
Fàng
huái
怀
gāo
高歌

sing to one's heart's content

2
Fànghuáixiào
放怀大笑

let out loud laughter; laugh heartily

As a Verb

feel relieved; rest assured

3
Tīng
le
xiāoxi
消息
  
,
fàng
huái
怀
le
duō
许多
  

He felt much relieved at the news.