Personalized customer service has been our hallmark for over 20 years. 貼心的顧客服務(wù)20多年來始終是我們的特色。Renewable technology development has been the hallmark for Steven Chu's tenure as the U.S. Secretary of Energy. 朱棣文在任美國能源部長期間,政策核心一直是可再生能源的開發(fā)。 好的,今天我們學(xué)習(xí)的詞是 hallmark, hallmark, hallmark...