the Philippines为什么前面要加the呢?China前面不是没有加the吗?

Philippines为什么加the the Philippines为什么前面要加the呢?China前面不是没有加the吗? Republic of the Philippines为什么国家前可以加the The Philippines（）in the Pacific Ocean为什么标准答案是are而不是is,the philippines不是指一个国家吗 the Philippines是什么意思 product of the philippines是什么意思 University Of the Philippines Diliman 是什么意思? This product comes from ____ Philippines ,but that one comes from ____ Thailand .(a ,an ,the ,/)为什么Philippines 前加the而Thailand 前不加the 有关国家的词,什么样的加the ,什么样的不加the?请详解, the philippines have the most i_______ in the world 菲律宾的英文是the Philippines还是Philippine the Philippines were still searching for the missing plane.此句were可换成are吗?为什么用过去进行时There were 239 people on board the Malaysia Airlines flight,including China,Vietnam,the US,Singapore,and the Philippines were still search last为什么前面加the? Earth前面为什么不用The philippines是什么意思 philippines是什么意思 the three fish 前面为什么加the the wright brothers前面为什么加the 专有名词一般前面加the ,为什么Big Ben 前面不加呢?