some people believe that space exploration is a sheer waste of time and money. They point out the fact that it cost billions of dollars to carry on the space research, but a little information was brought
In physicsSpace is one of the few fundamental quantities in physics, meaning that it cannot be defined via other quantities because there is nothing more fundamental known at present. Thus, similar to the definition of
even imagine now. Space exploration is a challenge to human beings. That's why several nations try hard to carry out space exploration continuously.（英语作文）翻译：
翟志刚留在太空上的一小步,是中华民族历史性的一步。 China Aerospace has a team of high-quality talents who can stand at the forefront of world science and technology and have the courage to explore and innovate.
不合理存在
