跨国合作是保护海洋生态系统的关键。
在夜的寂静中,作家找到了最响亮的真相。
I have been a selfish being all my life, in practice, though not in principle.
教育是我们所有能力的和谐发展。
The best discoveries come when you're not afraid to break the rules.
The Celts have a close affinity with nature.