0 New HSK word(s):

0 Old HSK word(s):

环境问题 [huan2 jing4 wen4 ti2]

Umweltproblematik (S)
难处 [nan2 chu5]

Problematik (S)Schwierigkeit (S)
人口问题 [ren2 kou3 wen4 ti2]

Bevölkerungsproblematik (S)