坚小持晋级课L5：Landscape (1)Most people consider the landscape to be unchanging, but Earth is a dynamic body, and its surface is continually altering-slowly on the human time scale, but relatively rapidly when compared to the age of Earth (about 4,500 billion years).
Uncle Ben, how did the Forbidden City get this name?Well, in the feudal society, emperors had supreme power, so his residence was certainly a forbidden place.
Where can I find my seat?Can you help me put this up?
Where can I find my seat?
Where can I find my seat?Can you help me put this up?Is it possible for me to have a blanket?