yán / jiū / rén / yuán / tōng / guò / yú / lùn / diào / chá / liǎo / jiě / gōng / zhòng / duì / huán / bǎo / wèn / tí / de / kàn / fǎ

研究人员通过舆论调查了解公众对环保问题的看法。

Researchers used an opinion poll to learn how the public views environmental issues.