for 15 years ,the United Nations ,has deen ___ 横线上填什么1,world water day……

The letters UN stand for United Nations.(对打引号部分提问)____ ____ the letters UN stand for? 英语翻译for the last 20 years The Smiths ______ Beijing for years. the story happens for three years 联合国是the UN 还是UN? The letters UN stand for the United Nations.的同义句 The letters UN stand for the United Nations.的同义句 the Office of the UN High Commissioner for Refugees是什么意思?貌似是个专有名词 He saved money for years 和 he saved the money for years 这个the到底有么有 the un peace-keeping the un peace-keeping the un peace-keeping the man hiccupped for 69 years 为什么用for? 英语翻译The Tower of Pisa is the bell tower of the Cathedral.Its construction began in the august of 1173 and continued (with two long interruptions) for about two hundred years,in full fidelity to the original project,whose architect is still un Un is short for the United Nations.啥意思?我问这句话的意思 UN stands for the United Nations怎么翻译?这一整句怎么翻译 My father worked in the factory for three years.(对for three years划线提问) I have had the bike for ten years.I_______the bike for ten years ago.