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1.Molecules are the very smallest building blocks that make up the cells in our body.
make up组成
Women officers make up 13 per cent of the police force.
女警占警力的13%。
2.We can understand how they are built and how they act and how they work together in large communities.
work together合作
We have not yet learned to work together.
我们还没有学会一起工作。
