저 이번에 리딩
A creature.... (이떤 동물대해서?)
The succession of the ecosystem (이게 막 돌이랑 바람이랑 해서 막 그런 토픽??)
Development of a C island near Greece
Why do people get older, cell division stops, immune system worsens and coordination systems interact?
이렇게 나왓는데 더미가 뭔가요ㅠㅠㅠㅠ