HSK C6
Correct

叹

/ tàn / 
Strokes

Definition

to sigh/to exclaim

Example

As a Verb
sigh in lamentation
1
Zìtàn
自叹
bùrú
不如

admit with regret that one is not as good

2
Tàn
叹
yīshēng
一声

let out/heave/utter/give a sigh

As a Verb
recite with a cadence; chant
As a Verb
exclaim in admiration; acclaim; praise