Yabla video uses of 整治

duì
de
环境 huánjìng
综合 zōnghé
整治 zhěngzhì
工作 gōngzuò
早在 zǎozài
上世纪 shàngshìjì
九十 jiǔshí
年代 niándài
中期 zhōngqī
jiù
开始 kāishǐ
le
Comprehensive restoration work has already been underway since the 20th century.