Sometimes in life, you don't always feel strong, but that doesn't mean you're not.
制造链式反应机器的基本点当然是确保每次裂变产生一定数量的中子,其中一些中子再次有效地产生裂变。
景观不仅仅是其组成部分的总和,而是一个复杂系统,其中每个元素都是相互关联的。
I believe that every film should have a message, something that resonates with the audience.