怎样避免发生火灾,发生火灾时应该怎么做?3o~5o字(英语作文)

But the evolution of human ideas is extremely slow and hard. From "Aristotle" to "Ptolemy's geocentric theory" to "Copernicus - Galileo's heliocentric evolution spent time in 2000. Surprisingly, although people know the world all are in motion, only to the 1920s due to Hubble discovered the redshift law, the concept of the evolution of the universe before entering the human consciousness. People never even thought of the universe to evolve. Newton's law of universal gravitation shows that the material of the universe can not be in a stable state under the action of

Trouble help translate an article about the fire emergency English composition of 80 words or so thank you very much when the fire broke out,to calm in the face.Say the fire of very small
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