I learned a lot of understanding yesterday, and I think it is very useful in life! Look: I got up at 6: 30 this morning, brushed my teeth and washed my face quickly. Then I ate a 50g egg, drank a bag of 250g milk and hurried to school with a 2kg schoolbag on my back. On the way, I suddenly heard someone calling my name. When I looked back, it turned out to be a thin Li Lin in our class who only weighed more than 20 kilograms. I talked to him as I walked. I was about to cross the road when a big truck loaded with 6 tons of cement came. It was a close call. Let's stop immediately and let the car go first. Seeing these two cars, I remembered that Li Lin said in class yesterday that the load of a truck was 6 kilograms, so I couldn't help asking, "Li Lin, did you see it?" What you said yesterday about the truck load is wrong. "Li Lin said:" I later realized that a person weighs more than 6 kilograms, and the weight of a truck of cement is definitely much heavier than that of people. "I held up my thumb." You are so smart! It will also be understood in a comparative way. "When we crossed the road and ran to the classroom, other students and Miss Sun arrived early.