地球及其周围的水域实际上必须具有其阴影所揭示的形状，因为它以完美的圆弧遮蔽了月亮。

In the era of globalization, maintaining cultural identity is more important than ever.

The expanded concept of art is necessary.

"The best way to predict the future is to build it."

能源的未来在于传统能源与可再生能源的融合。

偏差和方差之间的权衡是机器学习中的一个基本概念。