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- Breeding in captivity is possible but difficult and most specimens in the aquarium trade are caught in the tributaries of the Rio Negro and Orinoco. (参考文献7020)繁殖在繁殖场是可能的，但是在水族贸易的困难而大多数的标本被在尼格罗河的支流与奥里诺科河捕获。
- Researchers from the National Institute for Amazonian Studies (INPA) use nets to collect specimens of pacu, a fish that eats fruits and nuts, on the Rio Negro in Amazonas state, Brazil. 在巴西亚马逊州的里奥内格罗河上，来自亚马逊国家研究所的研究员正在用网捕捉一种食用水果以及坚果的鱼的样本。
- It's impolite to call the black people Negro. 称呼黑人为Negro是不礼貌的。
- A native or inhabitant of Rio de Janeiro, Brazil. 巴西里约热内卢人或里约热内卢的居民
- Rio Negro 尼格罗河
- "Negro songs make me sick," said the racist. 这个种族歧视者说: "黑人歌曲使我恶心。"
- The Rio Grande marks the border between Mexico and the USA. 里奥格兰德河是墨西哥和美国之间的界河。
- Eleven hours out of Paris, the Air France plane let down into Rio de Janeiro. 法国航空公司的飞机在飞离巴黎11个小时之后，在里约热内卢减速下降。
- Ronaldo grew up in Bento Ribeiro, a suburb of Rio. 罗纳尔多在里约热内卢的一个叫本托.;利贝罗的郊区长大的。
- He was the first Negro ever to enroll there. 他是学院招收的第一个黑人学生。
- Music has always been important in Negro life. 音乐在黑人生活中一直占有重要地位。
- Boaz Negro did not rebuild his house. 鲍兹·尼格罗一直没有重新修建他的房屋。
- On a bench in the obscurity sat the negro Jess. 而那个叫杰斯的黑人就坐在阴暗处的长凳上。
- Ronaldo grew up in Bento Ribeiro,a suburb of Rio. 罗纳尔多在里约热内卢的一个叫本托.;利贝罗的郊区长大的。
- Rio Tinto South Africa Proprietary, Ltd. 里奥廷托南非股份有限公司
- There is a number of negro in the city. 这个城市有一些黑人。
- They're seeing Anton, not Rio's brother. 他们关注安顿，不是里奥的弟弟。
- The Negro prisoner was forced to wear a ball and chain attached to one of his ankles. 那个黑人囚犯被迫在一只脚上带上了系有铁球的脚链。
- Rio Tinto Zinc corporation, Ltd. 里奥廷托锌公司
- What clothes do I need for Rio in February? 在里约热内卢的二月份，我需要穿什么衣服?
