In addition to international spread of type 1 polio, wild poliovirus type 3 originating from northern Nigeria has also been reported in Chad and Niger.

除了在国际范围蔓延的1型脊髓灰质炎外，乍得和尼日尔也报告了起源于尼日利亚北部的3型脊髓灰质炎病毒。

youdao

The other five African sprinters were Nigeria, Ethiopia, Chad, Mozambique and Rwanda, all with annual growth rates of around 8% or more.

其他五个来自非洲的佼佼者是尼日利亚、埃塞俄比亚、乍得、莫桑比克和卢旺达，它们的年经济增长率均接近甚至超过了8%。

youdao

This year, Botswana, Burundi, Chad, Eritrea, Gabon, Liberia, Mali, Mozambique, Nigeria, Tanzania, and Togo will also have training programs.

今年，博茨瓦纳、布隆迪、乍得、厄立特里亚、加蓬、利比里亚、马里、莫桑比克、尼日利亚、坦桑尼亚和多哥等国也将开展培训。

youdao

"The countries that have experienced the most deaths include Zimbabwe, Chad and Nigeria."

VOA: standard.2010.05.21

The team has already collected feathers from a range of surrogate species around Lake Chad in Nigeria, and is looking for further sites where warblers may be wintering.

BBC: Feathers clue to warbler's travels

Several thousand troops from Mali's neighbours, including Chad, Niger, Nigeria, Togo and Senegal have already been sent to Mali to retain control of the retaken northern towns and also to take care of security in the south.

BBC: Mali 'hesitant' over UN peacekeeping force

Several thousand troops from nearby African nations, including Chad, Niger, Nigeria, Togo and Senegal, have already been sent to Mali to retain control of the retaken northern towns and also to take care of security in the south.

BBC: Mali sets 7 July election date, says minister