The function of the sentence describing the weather in the first natural paragraph is () "The teacher looked pale and spoke to us word for word." Why did he say "word for word"?

Describe the environment and atmosphere below, attract people's interest, and make a copy of what the teacher in the following text has done to help us understand how to overcome difficulties, showing that bad weather is a very big difficulty.

Echoing the above, the previous sentence describes the extremely bad weather. Every word reflects the strong wind and the harsh environment, and also reflects the teacher’s determination to let us experience overcoming difficulties.