Card 2205 HSK 2010 Level 6 2205/2512
CARD 2205
PROGRESS 88%
优胜劣汰
優勝劣汰
yōu shèng liè tài
survival of the fittest

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