22岁的他是清华大学水利专业学生。通过学长介绍，他做起冬令营辅导员的工作。
The 22-year-old water conservancy major at Tsinghua University was recommended by his upperclassman to work as a counselor at a winter camp.
22岁的他是清华大学水利专业学生。通过学长介绍，他做起冬令营辅导员的工作。
The 22-year-old water conservancy major at Tsinghua University was recommended by his upperclassman to work as a counselor at a winter camp.
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