到底是from other country还是from other countries对?

people from other country为什么不是countries 改错Imigrates from other countries “food from other countries”的作文 Friends from other countries 英语作文 a person from other countries什么意思 其他国家的制片厂是other countries' studios还是other country's studios Many Americans like m------ people from other countries. the Chinese are very the visitors from other countries Workers from many of the other countries besides America swa the friendly chinese always____ people from other countries People from other countries find(it difficult to)learn Chine It' hard to meet people from other countries,why?