黑斑

dark spot or blotch on the skin

abbr. for Heilongjiang province 黑龍江|黑龙江[Hei1 long2 jiang1]

black / dark / sinister / secret / shady / illegal / to hide (sth) away / to vilify / (loanword) to hack (computing)

spot / colored patch / stripe / spotted / striped / variegated

(bird species of China) common grasshopper warbler (Locustella naevia)

Aedes, a genus of mosquito