求翻译：2011年3月31日，24岁留学生汪某在上海浦东机场因留学费用等问题与母亲发生争执，遂从包内抽出两把尖刀，对身后毫无防备的母亲头部、手臂、腹部、背部多处进行砍、刺，致母亲重伤。是什么意思？

March 31, 2011, 24-year-old student at the Shanghai Pudong Airport Wangmou study and fees due to a dispute with his mother, then from the two sharp knives out of the bag, behind the unsuspecting mother of the head, arms, abdomen, many to cut back, stab, causing his mother seriously injured.

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On March 31, because 2011, 24 year old foreign student Wang at Shanghai Pudong Airport questions and the mother and so on abroad study expense has the dispute, then extracts two from the package the pointed knife, to the mother forehead, the arm, the abdomen, the back which after death does not guar

On March 31, 2011, 24 years old student Wang studied in Shanghai Pudong International Airport over cost and other issues with the mother, then taking two sharp knives from within the package, on unsuspecting mother behind the head, arms, abdomen, back, cut in several places, Gill and mother was seri

正在翻译，请等待...