求翻译：兹证明韩易成，（出生日期2004年2月9日，护照号G37695494），是我校二年级三班的学生，我们允许他在2012年7月20日至2012年7月31日期间随他父母去欧洲旅游，费用由他父母来承担，在他回国后保留他的学籍，并保证他按时回国是什么意思？

Hereby prove that Han Yi into, (date of birth, 2004 February 9 Day, passport number g37695494), is my school second grade three classes of students, we allow him in the 31 July 20, 2012 to 2012 7 month with his parents travel to Europe, the cost by his parents to bear, after he returned home to reta

THIS IS TO CERTIFY that Han-yi, (date of birth February 9, 2004, passport number 37.695494 million G), which is my school grades 2 3, the students we allow him to July 20, 2012 to July 31, 2012 with his parents to go to the European tour, the cost by his parents, his return home after the school, an

This proved Han Yicheng, (date of birth on February 9, 2004, passport number G37695494), is my school second year three class of student, we permit him from July 20, 2012 to July 31, 2012 the period goes to Europe along with his parents to travel, the expense undertakes by his parents, returns to ho

Certify that the Han Yicheng, (date of birth on February 9, 2004, passport number G37695494) are my three classes of students in second grade, we allowed him to travel to Europe with his parents during a July 20, 2012, the costs borne by his parents, he retained after his student, and ensure his tim

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