bǎo hù / huán jìng / shì / lǎo shēng cháng tán / dàn / zhēn zhèng / luò shí / dào / rì cháng / shēng huó / réng / xū / jiān chí

保护环境是老生常谈，但真正落实到日常生活仍需坚持。

Protecting the environment is an old observation, but putting it into practice in daily life still requires persistence.