The first student went in winter, the second in spring.
第一个学生是冬天去的，第二个是春天去的。
The first student went in winter, the second in spring, the third in summer, and the last in autumn.
第一个学生在冬天去，第二个春天去，第三个夏天去，第四个秋天去。
The first student went in winter, the second in spring, the third in summer, and the last in autumn.
第一个学生在冬天去，第二个春天去，第三个夏天去，第四个秋天去。
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