zhè / jiā / gōng / sī / shì / tú / tōng / guò / gōng / guān / huó / dòng / xǐ / bái / guò / qù / de / chǒu / wén这家公司试图通过公关活动洗白过去的丑闻。The company tried to whitewash its past scandal through public relations activities.