They sail with the wind.
With the change of the economic foundation，the superstructure has to be transformed too.
With the battlle of Waterloo，Napoleon‘s rule in Europe was ended.
The modern electron tube.
She is with child.=She is in a very interesting condition.=in a family way，=She is pregnant(in pregnancy)。
但She is with a child.
China is a very large country with a long history.
China is a country with a population of ten billion people.