Correct

痛饮

/ tòngyǐn / 
Strokes

Definition

to drink one's fill

Example

As a Verb

drink one's fill; drink to one's heart's content; drink as much as one wants

1
Yīqì
一气
tòngyǐn
痛饮
sān
三
bēi
杯

drink up three cups (of wine) in a row

2
Kāihuái
开怀
tòngyǐn
痛饮

drink to one's heart's content