HSK 5
爱护
àihù动
to cherish; to treasure; to take care of; to love and protect
大家都要爱护公共环境。
Dà jiā dōu yào ài hù gōng gòng huán jìng.
Everyone should take care of the public environment.
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New in the HSK 3.0 word list at level 5.