I want to major in biology because I have long wondered about the origin of life.
我想要主修生物学，因为我一直在思考生命的起源。
2
I was so angry yesterday! My biology teacher did not even let me explain why I missed the field trip.
我昨天很生气！我的生物老师都不让我解释为什么我错过了实地考察。
3
I am pretty sure those other students are doing the internship at the center's aquarium, taking classes in marine biology and then teaching visitors about the various displays.