今天我们要学的词是 hallmark。Hallmark 意思是特点，标志。A strong defense has always been the hallmark for our team. 我们球队最大的特点是防守能力强。

Personalized customer service has been our hallmark for over 20 years. 贴心的顾客服务20多年来始终是我们的特色。Renewable technology development has been the hallmark for Steven Chu's tenure as the U.S. Secretary of Energy. 朱棣文在任美国能源部长期间，政策核心一直是可再生能源的开发。 好的，今天我们学习的词是 hallmark, hallmark, hallmark...