What does 泰然 (tàirán) mean in English?

Card 2481HSK Level 42481/3571
CARD2481
PROGRESS69%
泰然
tàirán
imperturbable(Adjective)
Click to reveal
← Previous↑ DeckNext →

Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d