Yabla video uses of 环境污染

现代 xiàndài
工业 gōngyè
de
发展 fāzhǎn
不可避免 bùkěbìmiǎn
suí
zhī
出现 chūxiàn
环境污染 huánjìngwūrǎn
The development of modern industry has unavoidably produced pollution everywhere.