他的专业是生物学，我的专业是生理学。
他原先大学时候的专业是海洋生物学，但是几经辗转，他获得了昆虫学的硕士学位。
His original undergraduate major was Marine biology, but he wound up getting a master's degree in entomology.
他原先大学时候的专业是海洋生物学，但是几经辗转，他获得了昆虫学的硕士学位。
His original undergraduate major was Marine biology, but he wound up getting a master's degree in entomology.
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