单词	Rio Negro
释义	Rio Negro /ˌriːəʊ ˈneɪɡrəʊ / /ˈnɛɡ-/ A river of South America, which rises as the Guainia in eastern Colombia and flows for about 2,255 km (1,400 miles) through NW Brazil before joining the Amazon near Manaus.
随便看	non-united nonuple nonuplet non-urban non-usage non-usager non-use non-user non-using non-utility non-valent non-validity non-vanishing non-variable non-vascular non-veg non-vegetarian non-veggie non-verbal non-verbalised non-verbalized non-verbally non-viable non-vintage non-violence

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。