how many of you have been to the three corges dam?翻译

how many of you have been to the three corges dam?翻译 how many of you have been to Canada? 翻译：HOW MANY TIMES HAVE YOU BEEN TO BEIJING? how many of you have been to the usa?答句选什么 how many of you have been to the usa?起什么作用 How many times have you been to the Great wall?为什time要加s How many times have you been to Beijing? how many cities have you been to in china 中文 how many have you been here How many times have you been here? __How many times have you been to the Great Wall? "the three gorges dam"的翻译