The Vietnamese people deeply love independence, freedom, and peace. But in the face of a threat to their country's independence and freedom, the Vietnamese people would rather sacrifice everything, not afraid to lose their lives, to defend the independence and freedom of their homeland.

物理学的美丽在于它能够揭示宇宙表面复杂性之下的深刻简单性。

可持续性不仅仅是一个选择；它是对后代的责任。