China was the first country in the world to cultivate silkworms and develop silk weaving. More than 3,000 years ago, sericulture and silk weaving were already significantly developed.
中国是世界上最早发明养蚕和丝织的国家；早在3,000多年以前，蚕桑、丝织已相当发达。
《新英汉大辞典》
2
Since the Chengdu Lodz express railway was opened, Chengdu, together with other cities in west China, has developed close trade ties with the European country.
成都罗兹高铁开通以来，成都与中国西部其他城市一起，与这个欧洲国家发展了密切的贸易关系。
3
High speed railways have developed rapidly in our country.